diff --git a/docs/arcade.md b/docs/arcade.md
new file mode 100644
index 0000000..2ca7ec6
--- /dev/null
+++ b/docs/arcade.md
@@ -0,0 +1,45 @@
+# Waiting Arcade
+
+Waiting Arcade lets you play small terminal games while Logicsrc runs long tasks.
+
+```bash
+logicsrc arcade list
+logicsrc arcade play hangman
+logicsrc --yolo --arcade=hangman
+logicsrc agentswarm --yolo --arcade=random
+logicsrc agentswarm --yolo --no-arcade
+```
+
+Built-in games:
+
+- `hangman`
+- `snake`
+- `moon-runner`
+- `minefield`
+- `agent-swarm`
+
+Use `random` to pick a built-in game.
+
+## Task Mode
+
+When arcade mode is launched from `--yolo` or `agentswarm --yolo`, the task continues in the background. The game shows a compact task overlay with status, phase, progress, last message, and cost when available.
+
+The arcade pauses immediately when the task completes, fails, needs approval, or needs expense approval. Expense approval requires an explicit modal action; the game never silently approves cost.
+
+## Shortcuts
+
+| Key | Action |
+| --- | --- |
+| `L` / `Ctrl+G` | Toggle task logs |
+| `Esc` | Pause game |
+| `Q` | Quit arcade |
+| `Ctrl+C` | Open stop prompt in interactive mode |
+| `Arrow` / `WASD` | Move in supported games |
+
+## Non-Interactive Terminals
+
+In CI or redirected output, Waiting Arcade does not enter raw interactive mode. It prints a static arcade snapshot and returns without changing terminal state.
+
+## Safety
+
+The runtime restores raw mode, cursor visibility, and the alternate screen on normal exit or `Ctrl+C`. Quitting the arcade does not imply task approval.
diff --git a/docs/config.md b/docs/config.md
new file mode 100644
index 0000000..2062c29
--- /dev/null
+++ b/docs/config.md
@@ -0,0 +1,51 @@
+# Config
+
+Logicsrc stores user config at:
+
+```text
+$HOME/.logicsrc/config.json
+```
+
+Read and write values with dot paths:
+
+```bash
+logicsrc config get waiting.arcade.enabled
+logicsrc config set waiting.arcade.enabled true
+logicsrc config set waiting.arcade.defaultGame hangman
+logicsrc config set waiting.arcade.autoStartAfterSeconds 15
+```
+
+Default Waiting Arcade config:
+
+```json
+{
+  "waiting": {
+    "arcade": {
+      "enabled": true,
+      "defaultGame": "hangman",
+      "random": false,
+      "autoStartAfterSeconds": 0,
+      "interruptOnApproval": true,
+      "interruptOnDone": true,
+      "interruptOnError": true,
+      "showTaskStatusOverlay": true
+    }
+  }
+}
+```
+
+Precedence for arcade launch behavior is:
+
+1. CLI flags
+2. Environment variables
+3. User config
+4. Defaults
+
+Environment variables:
+
+```bash
+LOGICSRC_ARCADE=1
+LOGICSRC_ARCADE_GAME=hangman
+LOGICSRC_NO_ARCADE=1
+LOGICSRC_ARCADE_AUTOSTART_SECONDS=15
+```
diff --git a/docs/tui.md b/docs/tui.md
new file mode 100644
index 0000000..90e600c
--- /dev/null
+++ b/docs/tui.md
@@ -0,0 +1,13 @@
+# TUI
+
+The Logicsrc TUI package contains terminal rendering helpers for the static dashboard and Waiting Arcade.
+
+```bash
+logicsrc tui
+logicsrc arcade
+logicsrc arcade play snake
+```
+
+Waiting Arcade is dependency-free and runs inside the terminal. It uses keyboard input only and falls back to a static snapshot when stdout or stdin is not a TTY.
+
+Task integrations should emit progress, log, approval, expense, completion, and error events into the arcade runtime so attention events can pause the game and show an actionable modal.
diff --git a/packages/cli/src/config.ts b/packages/cli/src/config.ts
new file mode 100644
index 0000000..2b023cb
--- /dev/null
+++ b/packages/cli/src/config.ts
@@ -0,0 +1,87 @@
+import { existsSync, mkdirSync, readFileSync, writeFileSync } from "node:fs";
+import { dirname, join } from "node:path";
+import { homedir } from "node:os";
+
+export type JsonObject = Record<string, unknown>;
+
+export const defaultConfig: JsonObject = {
+  waiting: {
+    arcade: {
+      enabled: true,
+      defaultGame: "hangman",
+      random: false,
+      autoStartAfterSeconds: 0,
+      interruptOnApproval: true,
+      interruptOnDone: true,
+      interruptOnError: true,
+      showTaskStatusOverlay: true
+    }
+  }
+};
+
+export function configPath() {
+  return join(homedir(), ".logicsrc", "config.json");
+}
+
+export function readConfig() {
+  const file = configPath();
+  if (!existsSync(file)) {
+    return structuredClone(defaultConfig);
+  }
+  const parsed = JSON.parse(readFileSync(file, "utf8")) as JsonObject;
+  return mergeConfig(structuredClone(defaultConfig), parsed);
+}
+
+export function writeConfig(config: JsonObject) {
+  const file = configPath();
+  mkdirSync(dirname(file), { recursive: true });
+  writeFileSync(file, JSON.stringify(config, null, 2) + "\n");
+  return file;
+}
+
+export function getConfigValue(path: string, config = readConfig()) {
+  return path.split(".").reduce<unknown>((current, key) => (isObject(current) ? current[key] : undefined), config);
+}
+
+export function setConfigValue(path: string, rawValue: string, config = readConfig()) {
+  const parts = path.split(".").filter(Boolean);
+  if (parts.length === 0) {
+    throw new Error("Config path cannot be empty.");
+  }
+  let current: JsonObject = config;
+  for (const part of parts.slice(0, -1)) {
+    if (!isObject(current[part])) {
+      current[part] = {};
+    }
+    current = current[part] as JsonObject;
+  }
+  current[parts[parts.length - 1] as string] = parseConfigValue(rawValue);
+  return config;
+}
+
+export function parseConfigValue(value: string): unknown {
+  if (value === "true") return true;
+  if (value === "false") return false;
+  if (value === "null") return null;
+  if (/^-?\d+(\.\d+)?$/.test(value)) return Number(value);
+  try {
+    return JSON.parse(value) as unknown;
+  } catch {
+    return value;
+  }
+}
+
+function mergeConfig(base: JsonObject, override: JsonObject): JsonObject {
+  for (const [key, value] of Object.entries(override)) {
+    if (isObject(value) && isObject(base[key])) {
+      base[key] = mergeConfig(base[key] as JsonObject, value);
+    } else {
+      base[key] = value;
+    }
+  }
+  return base;
+}
+
+function isObject(value: unknown): value is JsonObject {
+  return typeof value === "object" && value !== null && !Array.isArray(value);
+}
diff --git a/packages/cli/src/index.ts b/packages/cli/src/index.ts
index 6f365d5..45bd4c8 100644
--- a/packages/cli/src/index.ts
+++ b/packages/cli/src/index.ts
@@ -1,22 +1,61 @@
 #!/usr/bin/env node
 import { readFileSync } from "node:fs";
 import { Command } from "commander";
-import { renderPluginStatus, renderTui } from "@logicsrc/tui";
+import { renderArcadeList, renderPluginStatus, renderTui, runArcadeSession, type TaskSnapshot } from "@logicsrc/tui";
 import { assertSchemaKind, parseDocument, validate } from "@logicsrc/validators";
+import { getConfigValue, readConfig, setConfigValue, writeConfig } from "./config.js";
 import { boards, tasks } from "./fixtures.js";
 import { print, type OutputFormat } from "./format.js";
 import { exportOpenSpecSummary, importOpenSpec, writeOpenSpecChange } from "./openspec.js";
 import { defaultPluginRegistry } from "./registry.js";
 
+process.stdout.on("error", (error: NodeJS.ErrnoException) => {
+  if (error.code === "EPIPE") {
+    process.exit(0);
+  }
+  throw error;
+});
+
 const program = new Command();
+program.enablePositionalOptions();
 
 program
   .name("logicsrc")
   .description("LogicSRC OpenSpec CLI for schemas, boards, tasks, agents, payments, plugins, and TUI.")
   .option("--openspec", "Enable OpenSpec.dev-compatible repo-local specs, proposals, tasks, and deltas where supported.")
   .option("--openspec-only", "Restrict workflows to LogicSRC OpenSpec schemas, SDKs, MCP, CLI, TUI, and PWA contracts.")
+  .option("--yolo", "Start the default AgentSwarm YOLO flow.")
+  .option("--arcade [game]", "Launch Waiting Arcade while a long-running task executes.")
+  .option("--waiting-arcade", "Alias for --arcade.")
+  .option("--waiting-game <game>", "Alias for --arcade=<game>.")
+  .option("--no-arcade", "Disable Waiting Arcade.")
   .version("0.1.0");
 
+program.action(async (options) => {
+  if (!options.yolo) {
+    program.outputHelp();
+    return;
+  }
+
+  const arcadeGame = resolveArcadeGame(options);
+  if (arcadeGame) {
+    await runYoloArcade(arcadeGame);
+    return;
+  }
+
+  print(
+    {
+      type: "logicsrc.agentswarm.session",
+      status: "opening",
+      mode: "yolo",
+      master_agent: "agentswarm-master",
+      slave_agents: ["reproduce", "patch", "review"],
+      arcade: false
+    },
+    "json"
+  );
+});
+
 program
   .command("login")
   .option("--did <did>", "CoinPay DID")
@@ -124,16 +163,59 @@ program.command("events").description("Listen to LogicSRC event stream.").argume
   console.log(JSON.stringify({ type: "logicsrc.event", event: "task.created", resource_id: "task_789" }));
 });
 
+const arcade = program.command("arcade").description("Play Waiting Arcade games.");
+
+arcade.action(async () => {
+  await runArcadeSession({ game: process.env.LOGICSRC_ARCADE_GAME || "hangman", standalone: true });
+});
+
+arcade.command("list").description("List built-in Waiting Arcade games.").action(() => {
+  console.log(renderArcadeList());
+});
+
+arcade
+  .command("play")
+  .argument("[game]", "Game id or random", "hangman")
+  .description("Play a standalone Waiting Arcade game.")
+  .action(async (game) => {
+    await runArcadeSession({ game, standalone: true });
+  });
+
+const config = program.command("config").description("Read and write LogicSRC config.");
+
+config
+  .command("get")
+  .argument("<path>", "Dot-path config key")
+  .description("Print a config value.")
+  .action((path) => {
+    console.log(JSON.stringify(getConfigValue(path), null, 2));
+  });
+
+config
+  .command("set")
+  .argument("<path>", "Dot-path config key")
+  .argument("<value>", "JSON, boolean, number, or string value")
+  .description("Set a config value.")
+  .action((path, value) => {
+    const next = setConfigValue(path, value);
+    const file = writeConfig(next);
+    console.log(`Set ${path} in ${file}`);
+  });
+
 program
   .command("agentswarm")
   .alias("agent-swarm")
   .description("Open an AgentSwarm master agent session.")
   .option("--yolo", "Start the master agent with autonomous execution enabled.")
+  .option("--arcade [game]", "Launch Waiting Arcade while AgentSwarm runs.")
+  .option("--waiting-arcade", "Alias for --arcade.")
+  .option("--waiting-game <game>", "Alias for --arcade=<game>.")
+  .option("--no-arcade", "Disable Waiting Arcade.")
   .option("--repo <repo>", "Target repository, for example profullstack/logicsrc")
   .option("--agents <agents>", "Comma-separated slave agent roles", "reproduce,patch,review")
   .option("--change <id>", "OpenSpec-compatible change id", "agentswarm-yolo")
   .option("--out <dir>", "OpenSpec-compatible output directory")
-  .action((options) => {
+  .action(async (options) => {
     if (!options.yolo) {
       console.log("AgentSwarm is coming soon. Run `logicsrc agentswarm --yolo` to open the master agent flow.");
       return;
@@ -157,6 +239,12 @@ program
         })
       : null;
 
+    const arcadeGame = resolveArcadeGame(options);
+    if (arcadeGame) {
+      await runYoloArcade(arcadeGame, options.repo);
+      return;
+    }
+
     print({
       type: "logicsrc.agentswarm.session",
       status: "opening",
@@ -284,6 +372,49 @@ function toTaskSchema(item: (typeof tasks)[number]) {
   };
 }
 
+function resolveArcadeGame(options: { arcade?: string | boolean; waitingArcade?: boolean; waitingGame?: string }) {
+  if (options.arcade === false || process.env.LOGICSRC_NO_ARCADE === "1") {
+    return undefined;
+  }
+
+  if (options.waitingGame) {
+    return options.waitingGame;
+  }
+
+  if (typeof options.arcade === "string") {
+    return options.arcade;
+  }
+
+  const config = readConfig();
+  const configuredDefault = String(getConfigValue("waiting.arcade.defaultGame", config) ?? "hangman");
+
+  if (options.arcade === true || options.waitingArcade || process.env.LOGICSRC_ARCADE === "1") {
+    return process.env.LOGICSRC_ARCADE_GAME || configuredDefault;
+  }
+
+  return undefined;
+}
+
+async function runYoloArcade(game: string, repo?: string) {
+  const task: TaskSnapshot = {
+    id: "agentswarm_yolo",
+    title: repo ? `AgentSwarm YOLO on ${repo}` : "AgentSwarm YOLO session",
+    status: "running",
+    phase: "starting",
+    progress: 0.05,
+    costUsd: 0,
+    lastMessage: "launching Waiting Arcade"
+  };
+
+  await runArcadeSession({
+    game,
+    standalone: false,
+    task,
+    simulateTask: true,
+    logs: ["AgentSwarm master session started.", "Task continues while Waiting Arcade is active."]
+  });
+}
+
 program.parseAsync(process.argv).catch((error: unknown) => {
   console.error(error instanceof Error ? error.message : String(error));
   process.exitCode = 1;
diff --git a/packages/tui/src/arcade/games/agent-swarm.ts b/packages/tui/src/arcade/games/agent-swarm.ts
new file mode 100644
index 0000000..513810e
--- /dev/null
+++ b/packages/tui/src/arcade/games/agent-swarm.ts
@@ -0,0 +1,49 @@
+import type { GameAction, KeyEvent, TerminalFrame, WaitingGame } from "../types.js";
+
+export class AgentSwarmGame implements WaitingGame {
+  readonly id = "agent-swarm";
+  readonly title = "Agent Swarm";
+  readonly description = "Route agents around blockers and collect approvals.";
+  readonly controls = [
+    { key: "Arrow/WASD", action: "move lead agent" },
+    { key: "L/Ctrl+G", action: "logs" },
+    { key: "Esc", action: "pause" },
+    { key: "Q", action: "quit" }
+  ];
+
+  private x = 18;
+  private y = 8;
+  private tickCount = 0;
+
+  init() {
+    return;
+  }
+
+  tick() {
+    this.tickCount += 1;
+  }
+
+  input(event: KeyEvent): GameAction | void {
+    if (event.ctrl && event.name === "g") return { type: "toggle_logs" };
+    if (event.name === "escape") return { type: "pause" };
+    if (event.name === "q") return { type: "quit" };
+    if (event.name === "l") return { type: "toggle_logs" };
+    if (["up", "w", "k"].includes(event.name)) this.y = Math.max(2, this.y - 1);
+    if (["down", "s", "j"].includes(event.name)) this.y = Math.min(13, this.y + 1);
+    if (["left", "a", "h"].includes(event.name)) this.x = Math.max(4, this.x - 1);
+    if (["right", "d"].includes(event.name)) this.x = Math.min(50, this.x + 1);
+  }
+
+  render(frame: TerminalFrame) {
+    frame.box(0, 0, frame.width, frame.height - 5, this.title.toUpperCase());
+    frame.write(2, 4, "Guide the lead agent. Avoid blockers. Grab approvals.");
+    frame.write(6, 12, "B");
+    frame.write(10, 28, "B");
+    frame.write(5, 42, "$");
+    frame.write(12, 48, "A");
+    frame.write(this.y, this.x, "@");
+    frame.write(this.y + 1, Math.max(4, this.x - 4), "a a a");
+    frame.write(15, 4, `Swarm pulse: ${this.tickCount % 100}`);
+    frame.write(16, 4, "[Arrows/WASD] Move   [L/Ctrl+G] Logs   [Esc] Pause   [Q] Quit");
+  }
+}
diff --git a/packages/tui/src/arcade/games/hangman.ts b/packages/tui/src/arcade/games/hangman.ts
new file mode 100644
index 0000000..1e66c51
--- /dev/null
+++ b/packages/tui/src/arcade/games/hangman.ts
@@ -0,0 +1,77 @@
+import type { GameAction, GameContext, KeyEvent, TerminalFrame, WaitingGame } from "../types.js";
+import { fit } from "../renderer.js";
+
+const WORDS = ["LOGICSRC", "COMMAND BOARD", "AGENT SWARM", "PULL REQUEST", "TERMINAL", "SUPABASE", "COINPAY", "CRAWLPROOF", "UGIG", "SHIPT"];
+const BAD_IDEAS = ["JIRA", "WATERFALL", "WEBPACK", "XML CONFIG", "VENDOR LOCK-IN", "MEETING", "BIG REWRITE", "GLOBAL STATE"];
+
+export class HangmanGame implements WaitingGame {
+  readonly id = "hangman";
+  readonly title = "Logicsrc Hangman";
+  readonly description = "Guess terminal, agent, and Logicsrc words while a task runs.";
+  readonly controls = [
+    { key: "A-Z", action: "guess" },
+    { key: "L/Ctrl+G", action: "logs" },
+    { key: "Esc", action: "pause" },
+    { key: "Q", action: "quit" }
+  ];
+
+  private word = WORDS[0] ?? "LOGICSRC";
+  private guesses = new Set<string>();
+  private mistakes = 0;
+
+  init(ctx: GameContext) {
+    this.word = WORDS[Math.floor(ctx.random() * WORDS.length)] ?? "LOGICSRC";
+  }
+
+  tick() {
+    return;
+  }
+
+  input(event: KeyEvent): GameAction | void {
+    if (event.ctrl && event.name === "g") {
+      return { type: "toggle_logs" };
+    }
+    if (event.name === "escape") {
+      return { type: "pause" };
+    }
+    if (event.name === "q") {
+      return { type: "quit" };
+    }
+    if (event.name === "l") {
+      return { type: "toggle_logs" };
+    }
+    if (/^[a-z]$/i.test(event.name)) {
+      const guess = event.name.toUpperCase();
+      if (!this.guesses.has(guess)) {
+        this.guesses.add(guess);
+        if (!this.word.includes(guess)) {
+          this.mistakes += 1;
+        }
+      }
+    }
+  }
+
+  render(frame: TerminalFrame) {
+    frame.box(0, 0, frame.width, frame.height - 5, this.title.toUpperCase());
+    frame.write(2, 4, "Phrase:");
+    frame.write(4, 4, this.maskedWord());
+    frame.write(6, 4, `Wrong guesses: ${this.mistakes}/6`);
+    frame.write(7, 4, BAD_IDEAS.slice(0, this.mistakes).join("  ") || "none yet");
+    frame.write(9, 4, fit(`Guessed: ${Array.from(this.guesses).sort().join(" ") || "none"}`, frame.width - 8));
+
+    const state = this.isWon() ? "solved" : this.mistakes >= 6 ? "reset with R or keep guessing" : "running";
+    frame.write(11, 4, `Round: ${state}`);
+    frame.write(13, 4, "[A-Z] Guess   [L/Ctrl+G] Logs   [Esc] Pause   [Q] Quit");
+  }
+
+  private maskedWord() {
+    return this.word
+      .split("")
+      .map((char) => (char === " " ? "  " : this.guesses.has(char) ? `${char} ` : "_ "))
+      .join("");
+  }
+
+  private isWon() {
+    return this.word.split("").every((char) => char === " " || this.guesses.has(char));
+  }
+}
diff --git a/packages/tui/src/arcade/games/minefield.ts b/packages/tui/src/arcade/games/minefield.ts
new file mode 100644
index 0000000..63826a7
--- /dev/null
+++ b/packages/tui/src/arcade/games/minefield.ts
@@ -0,0 +1,83 @@
+import type { GameAction, GameContext, KeyEvent, TerminalFrame, WaitingGame } from "../types.js";
+
+type Cell = { mine: boolean; open: boolean; flag: boolean };
+
+export class MinefieldGame implements WaitingGame {
+  readonly id = "minefield";
+  readonly title = "Deploy Minefield";
+  readonly description = "Clear risky deployment cells without triggering incidents.";
+  readonly controls = [
+    { key: "Arrow/WASD", action: "move" },
+    { key: "Space/Enter", action: "reveal" },
+    { key: "F", action: "flag" },
+    { key: "Q", action: "quit" }
+  ];
+
+  private width = 8;
+  private height = 6;
+  private cells: Cell[] = [];
+  private cursor = { x: 0, y: 0 };
+  private state = "clear risky cells";
+
+  init(ctx: GameContext) {
+    this.cells = Array.from({ length: this.width * this.height }, (_, index) => ({
+      mine: index > 0 && ctx.random() < 0.16,
+      open: false,
+      flag: false
+    }));
+  }
+
+  tick() {
+    return;
+  }
+
+  input(event: KeyEvent): GameAction | void {
+    if (event.ctrl && event.name === "g") return { type: "toggle_logs" };
+    if (event.name === "escape") return { type: "pause" };
+    if (event.name === "q") return { type: "quit" };
+    if (event.name === "l") return { type: "toggle_logs" };
+    if (["up", "w", "k"].includes(event.name)) this.cursor.y = Math.max(0, this.cursor.y - 1);
+    if (["down", "s", "j"].includes(event.name)) this.cursor.y = Math.min(this.height - 1, this.cursor.y + 1);
+    if (["left", "a", "h"].includes(event.name)) this.cursor.x = Math.max(0, this.cursor.x - 1);
+    if (["right", "d"].includes(event.name)) this.cursor.x = Math.min(this.width - 1, this.cursor.x + 1);
+    if (event.name === "f") this.cell(this.cursor.x, this.cursor.y).flag = !this.cell(this.cursor.x, this.cursor.y).flag;
+    if (event.name === "space" || event.name === "return") this.reveal(this.cursor.x, this.cursor.y);
+  }
+
+  render(frame: TerminalFrame) {
+    frame.box(0, 0, frame.width, frame.height - 5, this.title.toUpperCase());
+    frame.write(2, 4, `Status: ${this.state}`);
+    for (let y = 0; y < this.height; y += 1) {
+      for (let x = 0; x < this.width; x += 1) {
+        const cell = this.cell(x, y);
+        const selected = this.cursor.x === x && this.cursor.y === y;
+        const value = cell.flag ? "F" : cell.open ? (cell.mine ? "!" : String(this.neighbors(x, y))) : "#";
+        frame.write(4 + y, 6 + x * 4, selected ? `[${value}]` : ` ${value} `);
+      }
+    }
+    frame.write(12, 4, "[Arrows/WASD] Move   [Space/Enter] Reveal   [F] Flag   [Q] Quit");
+  }
+
+  private reveal(x: number, y: number) {
+    const cell = this.cell(x, y);
+    if (cell.flag) return;
+    cell.open = true;
+    this.state = cell.mine ? "incident triggered; keep mapping the blast radius" : "cell cleared";
+  }
+
+  private cell(x: number, y: number) {
+    return this.cells[y * this.width + x] ?? { mine: false, open: false, flag: false };
+  }
+
+  private neighbors(x: number, y: number) {
+    let count = 0;
+    for (let dy = -1; dy <= 1; dy += 1) {
+      for (let dx = -1; dx <= 1; dx += 1) {
+        if (dx !== 0 || dy !== 0) {
+          count += this.cell(x + dx, y + dy).mine ? 1 : 0;
+        }
+      }
+    }
+    return count;
+  }
+}
diff --git a/packages/tui/src/arcade/games/moon-runner.ts b/packages/tui/src/arcade/games/moon-runner.ts
new file mode 100644
index 0000000..840fa75
--- /dev/null
+++ b/packages/tui/src/arcade/games/moon-runner.ts
@@ -0,0 +1,62 @@
+import type { GameAction, GameContext, KeyEvent, TerminalFrame, WaitingGame } from "../types.js";
+
+export class MoonRunnerGame implements WaitingGame {
+  readonly id = "moon-runner";
+  readonly title = "Moon Runner";
+  readonly description = "Jump over failed builds and collect green checks.";
+  readonly controls = [
+    { key: "Space/Up", action: "jump" },
+    { key: "L/Ctrl+G", action: "logs" },
+    { key: "Esc", action: "pause" },
+    { key: "Q", action: "quit" }
+  ];
+
+  private runnerY = 0;
+  private velocity = 0;
+  private obstacleX = 46;
+  private score = 0;
+  private random = Math.random;
+
+  init(ctx: GameContext) {
+    this.random = ctx.random;
+  }
+
+  tick(deltaMs: number) {
+    const step = Math.max(1, Math.round(deltaMs / 60));
+    this.obstacleX -= step;
+    if (this.obstacleX < 4) {
+      this.obstacleX = 42 + Math.floor(this.random() * 24);
+      this.score += 1;
+    }
+    this.velocity -= 0.08 * step;
+    this.runnerY = Math.max(0, this.runnerY + this.velocity);
+    if (this.runnerY === 0 && this.velocity < 0) {
+      this.velocity = 0;
+    }
+    if (this.obstacleX >= 8 && this.obstacleX <= 10 && this.runnerY < 1) {
+      this.score = 0;
+      this.obstacleX = 46;
+    }
+  }
+
+  input(event: KeyEvent): GameAction | void {
+    if (event.ctrl && event.name === "g") return { type: "toggle_logs" };
+    if (event.name === "escape") return { type: "pause" };
+    if (event.name === "q") return { type: "quit" };
+    if (event.name === "l") return { type: "toggle_logs" };
+    if (["space", "up", "w"].includes(event.name) && this.runnerY === 0) {
+      this.velocity = 1.15;
+    }
+  }
+
+  render(frame: TerminalFrame) {
+    const ground = Math.max(7, frame.height - 9);
+    frame.box(0, 0, frame.width, frame.height - 5, `${this.title.toUpperCase()} CHECKS ${this.score}`);
+    frame.write(ground + 1, 4, "_".repeat(Math.max(10, frame.width - 8)));
+    frame.write(ground - Math.round(this.runnerY), 9, "@");
+    frame.write(ground, this.obstacleX, "X");
+    frame.write(ground - 2, Math.max(18, this.obstacleX + 10), "+");
+    frame.write(2, 4, "Low gravity. High uptime.");
+    frame.write(ground + 3, 4, "[Space/Up] Jump   [L/Ctrl+G] Logs   [Esc] Pause   [Q] Quit");
+  }
+}
diff --git a/packages/tui/src/arcade/games/snake.ts b/packages/tui/src/arcade/games/snake.ts
new file mode 100644
index 0000000..6ea674d
--- /dev/null
+++ b/packages/tui/src/arcade/games/snake.ts
@@ -0,0 +1,78 @@
+import type { GameAction, GameContext, KeyEvent, TerminalFrame, WaitingGame } from "../types.js";
+
+type Point = { x: number; y: number };
+
+export class SnakeGame implements WaitingGame {
+  readonly id = "snake";
+  readonly title = "Token Snake";
+  readonly description = "Eat task tokens, grow the trail, and avoid blockers.";
+  readonly controls = [
+    { key: "Arrow/WASD", action: "move" },
+    { key: "L/Ctrl+G", action: "logs" },
+    { key: "Esc", action: "pause" },
+    { key: "Q", action: "quit" }
+  ];
+
+  private snake: Point[] = [{ x: 12, y: 6 }];
+  private direction: Point = { x: 1, y: 0 };
+  private token: Point = { x: 20, y: 6 };
+  private elapsed = 0;
+  private score = 0;
+  private random = Math.random;
+
+  init(ctx: GameContext) {
+    this.random = ctx.random;
+  }
+
+  tick(deltaMs: number) {
+    this.elapsed += deltaMs;
+    if (this.elapsed < 150) {
+      return;
+    }
+    this.elapsed = 0;
+    const head = this.snake[0] ?? { x: 12, y: 6 };
+    const next = { x: head.x + this.direction.x, y: head.y + this.direction.y };
+    const maxX = 38;
+    const maxY = 12;
+
+    if (next.x < 1 || next.x > maxX || next.y < 1 || next.y > maxY || this.snake.some((point) => point.x === next.x && point.y === next.y)) {
+      this.snake = [{ x: 12, y: 6 }];
+      this.direction = { x: 1, y: 0 };
+      this.score = 0;
+      return;
+    }
+
+    this.snake.unshift(next);
+    if (next.x === this.token.x && next.y === this.token.y) {
+      this.score += 1;
+      this.token = { x: 1 + Math.floor(this.random() * maxX), y: 1 + Math.floor(this.random() * maxY) };
+    } else {
+      this.snake.pop();
+    }
+  }
+
+  input(event: KeyEvent): GameAction | void {
+    if (event.ctrl && event.name === "g") return { type: "toggle_logs" };
+    if (event.name === "escape") return { type: "pause" };
+    if (event.name === "q") return { type: "quit" };
+    if (event.name === "l") return { type: "toggle_logs" };
+    if (["up", "w", "k"].includes(event.name) && this.direction.y !== 1) this.direction = { x: 0, y: -1 };
+    if (["down", "s", "j"].includes(event.name) && this.direction.y !== -1) this.direction = { x: 0, y: 1 };
+    if (["left", "a", "h"].includes(event.name) && this.direction.x !== 1) this.direction = { x: -1, y: 0 };
+    if (["right", "d", "l"].includes(event.name) && this.direction.x !== -1) this.direction = { x: 1, y: 0 };
+  }
+
+  render(frame: TerminalFrame) {
+    frame.box(0, 0, frame.width, frame.height - 5, `${this.title.toUpperCase()} SCORE ${this.score}`);
+    for (let y = 1; y <= 12; y += 1) {
+      for (let x = 1; x <= 38; x += 1) {
+        frame.write(y + 2, x + 4, ".");
+      }
+    }
+    frame.write(this.token.y + 2, this.token.x + 4, "$");
+    for (const [index, point] of this.snake.entries()) {
+      frame.write(point.y + 2, point.x + 4, index === 0 ? "@" : "o");
+    }
+    frame.write(16, 4, "[Arrows/WASD] Move   [L/Ctrl+G] Logs   [Esc] Pause   [Q] Quit");
+  }
+}
diff --git a/packages/tui/src/arcade/index.ts b/packages/tui/src/arcade/index.ts
new file mode 100644
index 0000000..a311417
--- /dev/null
+++ b/packages/tui/src/arcade/index.ts
@@ -0,0 +1,3 @@
+export { createDefaultArcadeRegistry, renderArcadeList, ArcadeRegistry } from "./registry.js";
+export { renderArcadeSnapshot, runArcadeSession } from "./runtime.js";
+export type { ArcadeEvent, GameAction, GameContext, GameControl, KeyEvent, TaskEvent, TaskSnapshot, TerminalFrame, WaitingGame } from "./types.js";
diff --git a/packages/tui/src/arcade/registry.ts b/packages/tui/src/arcade/registry.ts
new file mode 100644
index 0000000..d178d41
--- /dev/null
+++ b/packages/tui/src/arcade/registry.ts
@@ -0,0 +1,75 @@
+import type { WaitingGame } from "./types.js";
+import { AgentSwarmGame } from "./games/agent-swarm.js";
+import { HangmanGame } from "./games/hangman.js";
+import { MinefieldGame } from "./games/minefield.js";
+import { MoonRunnerGame } from "./games/moon-runner.js";
+import { SnakeGame } from "./games/snake.js";
+
+export type GameFactory = () => WaitingGame;
+
+export class ArcadeRegistry {
+  private readonly games = new Map<string, GameFactory>();
+
+  add(factory: GameFactory) {
+    const game = factory();
+    if (this.games.has(game.id)) {
+      throw new Error(`Arcade game already registered: ${game.id}`);
+    }
+    this.games.set(game.id, factory);
+  }
+
+  create(id: string) {
+    const factory = this.games.get(id);
+    if (!factory) {
+      throw new Error(`Unknown arcade game "${id}". Run "logicsrc arcade list" to see available games.`);
+    }
+    return factory();
+  }
+
+  list() {
+    return Array.from(this.games.values()).map((factory) => {
+      const game = factory();
+      return {
+        id: game.id,
+        title: game.title,
+        description: game.description,
+        controls: game.controls
+      };
+    });
+  }
+
+  choose(id: string | undefined, random = Math.random) {
+    if (!id || id === "default") {
+      return "hangman";
+    }
+    if (id !== "random") {
+      return id;
+    }
+    const games = this.list();
+    return games[Math.floor(random() * games.length)]?.id ?? "hangman";
+  }
+}
+
+export function createDefaultArcadeRegistry() {
+  const registry = new ArcadeRegistry();
+  registry.add(() => new HangmanGame());
+  registry.add(() => new SnakeGame());
+  registry.add(() => new MoonRunnerGame());
+  registry.add(() => new MinefieldGame());
+  registry.add(() => new AgentSwarmGame());
+  return registry;
+}
+
+export function renderArcadeList(registry = createDefaultArcadeRegistry()) {
+  const rows = registry.list();
+  const idWidth = Math.max(...rows.map((row) => row.id.length), 2);
+  const titleWidth = Math.max(...rows.map((row) => row.title.length), 5);
+
+  return [
+    "Waiting Arcade games",
+    "",
+    `${"id".padEnd(idWidth)}  ${"title".padEnd(titleWidth)}  description`,
+    `${"-".repeat(idWidth)}  ${"-".repeat(titleWidth)}  ${"-".repeat(40)}`,
+    ...rows.map((row) => `${row.id.padEnd(idWidth)}  ${row.title.padEnd(titleWidth)}  ${row.description}`)
+  ].join("\n");
+}
diff --git a/packages/tui/src/arcade/renderer.ts b/packages/tui/src/arcade/renderer.ts
new file mode 100644
index 0000000..947af2d
--- /dev/null
+++ b/packages/tui/src/arcade/renderer.ts
@@ -0,0 +1,98 @@
+import type { TaskSnapshot, TerminalFrame } from "./types.js";
+
+export class TextFrame implements TerminalFrame {
+  readonly width: number;
+  readonly height: number;
+  private readonly cells: string[][];
+
+  constructor(width: number, height: number) {
+    this.width = Math.max(40, width);
+    this.height = Math.max(16, height);
+    this.cells = Array.from({ length: this.height }, () => Array.from({ length: this.width }, () => " "));
+  }
+
+  write(row: number, col: number, text: string) {
+    if (row < 0 || row >= this.height || col >= this.width) {
+      return;
+    }
+
+    for (let index = 0; index < text.length && col + index < this.width; index += 1) {
+      if (col + index >= 0) {
+        this.cells[row][col + index] = text[index] ?? " ";
+      }
+    }
+  }
+
+  box(row: number, col: number, width: number, height: number, title?: string) {
+    const right = Math.min(this.width - 1, col + width - 1);
+    const bottom = Math.min(this.height - 1, row + height - 1);
+    const left = Math.max(0, col);
+    const top = Math.max(0, row);
+
+    for (let x = left; x <= right; x += 1) {
+      this.write(top, x, x === left || x === right ? "+" : "-");
+      this.write(bottom, x, x === left || x === right ? "+" : "-");
+    }
+    for (let y = top + 1; y < bottom; y += 1) {
+      this.write(y, left, "|");
+      this.write(y, right, "|");
+    }
+    if (title) {
+      this.write(top, left + 2, ` ${fit(title, Math.max(0, width - 6))} `);
+    }
+  }
+
+  toString() {
+    return this.cells.map((line) => line.join("").trimEnd()).join("\n").trimEnd();
+  }
+}
+
+export function fit(value: string, width: number) {
+  if (width <= 0) {
+    return "";
+  }
+  return value.length > width ? value.slice(0, Math.max(0, width - 1)) + "." : value.padEnd(width);
+}
+
+export function center(value: string, width: number) {
+  if (value.length >= width) {
+    return value.slice(0, width);
+  }
+  const left = Math.floor((width - value.length) / 2);
+  return `${" ".repeat(left)}${value}`;
+}
+
+export function renderTaskOverlay(frame: TerminalFrame, task: TaskSnapshot | undefined, standalone: boolean) {
+  const top = frame.height - 5;
+  frame.box(top, 0, frame.width, 5, standalone ? "STANDALONE MODE" : "TASK STATUS");
+
+  if (!task) {
+    frame.write(top + 1, 2, "No active task. Play mode only.");
+    frame.write(top + 2, 2, "[L/Ctrl+G] logs  [Esc] pause  [Q] quit");
+    return;
+  }
+
+  const cost = typeof task.costUsd === "number" ? ` Cost: $${task.costUsd.toFixed(2)}` : "";
+  const progress = typeof task.progress === "number" ? ` ${Math.round(task.progress * 100)}%` : "";
+  frame.write(top + 1, 2, fit(`Task: ${task.title}`, frame.width - 4));
+  frame.write(top + 2, 2, fit(`Status: ${task.status}${progress} Phase: ${task.phase ?? "unknown"}${cost}`, frame.width - 4));
+  frame.write(top + 3, 2, fit(`Last: ${task.lastMessage ?? "waiting for task events"}   [L/Ctrl+G] logs  [Esc] pause  [Q] quit`, frame.width - 4));
+}
+
+export function renderModal(title: string, body: string[], actions: string[], width = 58) {
+  const inner = width - 4;
+  const lines = [
+    `+${"=".repeat(width - 2)}+`,
+    `| ${fit(title, inner)} |`,
+    `|${" ".repeat(width - 2)}|`
+  ];
+
+  for (const line of body) {
+    lines.push(`| ${fit(line, inner)} |`);
+  }
+
+  lines.push(`|${" ".repeat(width - 2)}|`);
+  lines.push(`| ${fit(actions.join("   "), inner)} |`);
+  lines.push(`+${"=".repeat(width - 2)}+`);
+  return lines.join("\n");
+}
diff --git a/packages/tui/src/arcade/runtime.ts b/packages/tui/src/arcade/runtime.ts
new file mode 100644
index 0000000..00ce21c
--- /dev/null
+++ b/packages/tui/src/arcade/runtime.ts
@@ -0,0 +1,265 @@
+import { createDefaultArcadeRegistry, type ArcadeRegistry } from "./registry.js";
+import { fit, renderModal, renderTaskOverlay, TextFrame } from "./renderer.js";
+import type { KeyEvent, TaskEvent, TaskSnapshot, WaitingGame } from "./types.js";
+
+export interface ArcadeSessionOptions {
+  game?: string | boolean;
+  standalone?: boolean;
+  task?: TaskSnapshot;
+  logs?: string[];
+  registry?: ArcadeRegistry;
+  input?: NodeJS.ReadStream;
+  output?: NodeJS.WriteStream;
+  simulateTask?: boolean;
+}
+
+type Modal =
+  | { kind: "pause"; title: string; body: string[]; actions: string[] }
+  | { kind: "complete"; title: string; body: string[]; actions: string[] }
+  | { kind: "approval"; title: string; body: string[]; actions: string[] }
+  | { kind: "error"; title: string; body: string[]; actions: string[] };
+
+export function renderArcadeSnapshot(options: ArcadeSessionOptions = {}) {
+  const registry = options.registry ?? createDefaultArcadeRegistry();
+  const gameId = registry.choose(typeof options.game === "string" ? options.game : undefined);
+  const game = registry.create(gameId);
+  const task = options.task;
+  const frame = new TextFrame(80, 28);
+  game.init({ width: frame.width, height: frame.height, random: Math.random, task, emit: () => undefined });
+  game.render(frame);
+  renderTaskOverlay(frame, task, options.standalone ?? true);
+  return frame.toString();
+}
+
+export async function runArcadeSession(options: ArcadeSessionOptions = {}) {
+  const input = options.input ?? process.stdin;
+  const output = options.output ?? process.stdout;
+  const registry = options.registry ?? createDefaultArcadeRegistry();
+  const gameId = registry.choose(typeof options.game === "string" ? options.game : undefined);
+  const game = registry.create(gameId);
+  let task = options.task;
+  const logs = [...(options.logs ?? [])];
+
+  if (!input.isTTY || !output.isTTY) {
+    output.write(renderArcadeSnapshot({ ...options, game: gameId, task, logs }) + "\n");
+    if (!options.standalone) {
+      output.write("\nWaiting Arcade interactive mode is disabled outside an interactive terminal.\n");
+    }
+    return;
+  }
+
+  await game.init({ width: output.columns ?? 80, height: output.rows ?? 28, random: Math.random, task, emit: () => undefined });
+
+  let modal: Modal | undefined;
+  let showLogs = false;
+  let closed = false;
+  let lastFrameAt = Date.now();
+  let cleanupComplete = false;
+  const previousRawMode = input.isRaw;
+
+  const cleanup = () => {
+    if (cleanupComplete) {
+      return;
+    }
+    cleanupComplete = true;
+    clearInterval(loop);
+    for (const timer of timers) {
+      clearTimeout(timer);
+    }
+    input.off("data", onData);
+    process.off("SIGINT", onSigint);
+    if (input.isTTY) {
+      input.setRawMode(previousRawMode ?? false);
+    }
+    input.pause();
+    output.write("\x1b[?25h\x1b[?1049l");
+  };
+
+  const onSigint = () => {
+    closed = true;
+    cleanup();
+  };
+
+  const onData = (data: Buffer) => {
+    const event = parseKey(data);
+    if (event.ctrl && event.name === "c") {
+      modal = { kind: "pause", title: "STOP TASK?", body: ["Ctrl+C received.", "Press Q to quit arcade, or Esc to continue."], actions: ["[Q] Quit", "[Esc] Continue"] };
+      return;
+    }
+
+    if (showLogs) {
+      if (event.name === "escape" || event.name === "l" || (event.ctrl && event.name === "g")) {
+        showLogs = false;
+      }
+      return;
+    }
+
+    if (modal) {
+      if (event.name === "q") {
+        closed = true;
+        cleanup();
+      } else if (event.name === "l" || (event.ctrl && event.name === "g")) {
+        showLogs = true;
+      } else if (event.name === "escape" || event.name === "c" || event.name === "a" || event.name === "d" || event.name === "r") {
+        modal = undefined;
+        game.resume?.();
+      }
+      return;
+    }
+
+    const action = game.input(event);
+    if (action?.type === "quit") {
+      closed = true;
+      cleanup();
+    } else if (action?.type === "pause") {
+      game.pause?.();
+      modal = { kind: "pause", title: "ARCADE PAUSED", body: ["Task continues in the background."], actions: ["[Esc/C] Continue", "[L] Logs", "[Q] Quit"] };
+    } else if (action?.type === "toggle_logs") {
+      showLogs = true;
+    } else if (action?.type === "redraw") {
+      render();
+    }
+  };
+
+  const applyTaskEvent = (event: TaskEvent) => {
+    if ("task" in event) {
+      task = event.task;
+    }
+    if (event.type === "task:log") {
+      logs.push(`[${event.timestamp}] ${event.line}`);
+    }
+    if (event.type === "task:approval_required" || event.type === "task:expense_required" || event.type === "task:done" || event.type === "task:error") {
+      game.pause?.();
+    }
+    if (event.type === "task:approval_required") {
+      modal = { kind: "approval", title: "APPROVAL REQUIRED", body: [event.reason], actions: ["[A] Approve", "[D] Deny", "[L] Logs", "[P] Pause Job"] };
+    }
+    if (event.type === "task:expense_required") {
+      modal = { kind: "approval", title: "EXPENSE APPROVAL", body: [`Provider: ${event.provider}`, `Cost: $${event.amountUsd.toFixed(2)}`, event.reason], actions: ["[A] Approve", "[D] Deny", "[L] Logs"] };
+    }
+    if (event.type === "task:done") {
+      modal = { kind: "complete", title: "TASK COMPLETE", body: [event.result, `Cost: $${event.task.costUsd?.toFixed(2) ?? "0.00"}`], actions: ["[R] Review", "[L] Logs", "[C] Continue", "[Q] Quit"] };
+    }
+    if (event.type === "task:error") {
+      modal = { kind: "error", title: "TASK FAILED", body: [event.error], actions: ["[R] Retry", "[L] Logs", "[Q] Quit"] };
+    }
+  };
+
+  const timers = options.simulateTask ? createDemoTaskEvents(applyTaskEvent) : [];
+
+  input.setRawMode(true);
+  input.resume();
+  input.on("data", onData);
+  process.on("SIGINT", onSigint);
+  output.write("\x1b[?1049h\x1b[?25l");
+
+  const render = () => {
+    if (closed) {
+      return;
+    }
+    const width = output.columns ?? 80;
+    const height = output.rows ?? 28;
+    const frame = new TextFrame(width, height);
+    if (showLogs) {
+      renderLogs(frame, logs);
+    } else {
+      game.render(frame);
+      renderTaskOverlay(frame, task, options.standalone ?? true);
+    }
+    output.write(`\x1b[H\x1b[2J${frame.toString()}`);
+    if (modal) {
+      output.write("\n\n" + renderModal(modal.title, modal.body, modal.actions));
+    }
+  };
+
+  const loop = setInterval(() => {
+    const now = Date.now();
+    if (!modal && !showLogs) {
+      game.tick(now - lastFrameAt);
+    }
+    lastFrameAt = now;
+    render();
+  }, 66);
+
+  render();
+
+  await new Promise<void>((resolve) => {
+    const done = setInterval(() => {
+      if (closed) {
+        clearInterval(done);
+        resolve();
+      }
+    }, 50);
+  });
+}
+
+function renderLogs(frame: TextFrame, logs: string[]) {
+  frame.box(0, 0, frame.width, frame.height, "TASK LOGS");
+  const visible = logs.slice(-(frame.height - 4));
+  if (visible.length === 0) {
+    frame.write(2, 2, "No logs yet.");
+  }
+  for (const [index, line] of visible.entries()) {
+    frame.write(2 + index, 2, fit(line, frame.width - 4));
+  }
+  frame.write(frame.height - 2, 2, "[Esc/L/Ctrl+G] close logs");
+}
+
+function parseKey(data: Buffer): KeyEvent {
+  const sequence = data.toString("utf8");
+  if (sequence === "\u0003") return { name: "c", sequence, ctrl: true };
+  if (sequence === "\u0007") return { name: "g", sequence, ctrl: true };
+  if (sequence === "\u001b") return { name: "escape", sequence };
+  if (sequence === "\r") return { name: "return", sequence };
+  if (sequence === " ") return { name: "space", sequence };
+  if (sequence === "\u001b[A") return { name: "up", sequence };
+  if (sequence === "\u001b[B") return { name: "down", sequence };
+  if (sequence === "\u001b[C") return { name: "right", sequence };
+  if (sequence === "\u001b[D") return { name: "left", sequence };
+  return { name: sequence.toLowerCase(), sequence };
+}
+
+function createDemoTaskEvents(apply: (event: TaskEvent) => void) {
+  const started: TaskSnapshot = {
+    id: "demo_yolo",
+    title: "AgentSwarm YOLO session",
+    status: "running",
+    phase: "inspecting repo",
+    progress: 0.2,
+    costUsd: 0.08,
+    lastMessage: "cloned repo"
+  };
+
+  return [
+    setTimeout(() => apply({ type: "task:started", task: started }), 250),
+    setTimeout(() => apply({ type: "task:log", timestamp: new Date().toISOString(), line: "agent swarm inspected issue context" }), 900),
+    setTimeout(
+      () =>
+        apply({
+          type: "task:progress",
+          task: { ...started, phase: "running tests", progress: 0.58, costUsd: 0.21, lastMessage: "generated patch" }
+        }),
+      2200
+    ),
+    setTimeout(
+      () =>
+        apply({
+          type: "task:expense_required",
+          task: { ...started, status: "approval_required", phase: "browser QA", progress: 0.72, costUsd: 0.21, lastMessage: "approval required" },
+          provider: "Browserless",
+          amountUsd: 0.18,
+          reason: "Verify checkout flow before opening the PR."
+        }),
+      5200
+    ),
+    setTimeout(
+      () =>
+        apply({
+          type: "task:done",
+          task: { ...started, status: "done", phase: "complete", progress: 1, costUsd: 0.72, lastMessage: "PR ready for review" },
+          result: "PR #184 is ready for review. Tests passed."
+        }),
+      11000
+    )
+  ];
+}
diff --git a/packages/tui/src/arcade/types.ts b/packages/tui/src/arcade/types.ts
new file mode 100644
index 0000000..68c5c62
--- /dev/null
+++ b/packages/tui/src/arcade/types.ts
@@ -0,0 +1,71 @@
+export interface GameControl {
+  key: string;
+  action: string;
+}
+
+export interface KeyEvent {
+  name: string;
+  sequence: string;
+  ctrl?: boolean;
+}
+
+export type GameAction =
+  | { type: "quit" }
+  | { type: "pause" }
+  | { type: "toggle_logs" }
+  | { type: "redraw" }
+  | { type: "message"; message: string };
+
+export interface TaskSnapshot {
+  id: string;
+  title: string;
+  status: "queued" | "running" | "paused" | "approval_required" | "done" | "error" | "cancelled";
+  phase?: string;
+  progress?: number;
+  costUsd?: number;
+  lastMessage?: string;
+}
+
+export type TaskEvent =
+  | { type: "task:started"; task: TaskSnapshot }
+  | { type: "task:progress"; task: TaskSnapshot }
+  | { type: "task:log"; line: string; timestamp: string }
+  | { type: "task:approval_required"; task: TaskSnapshot; reason: string }
+  | { type: "task:expense_required"; task: TaskSnapshot; provider: string; amountUsd: number; reason: string }
+  | { type: "task:done"; task: TaskSnapshot; result: string }
+  | { type: "task:error"; task: TaskSnapshot; error: string }
+  | { type: "task:cancelled"; task: TaskSnapshot };
+
+export type ArcadeEvent = { type: "game:score"; score: number } | { type: "game:message"; message: string };
+
+export interface GameContext {
+  width: number;
+  height: number;
+  random: () => number;
+  task?: TaskSnapshot;
+  emit: (event: ArcadeEvent) => void;
+}
+
+export interface WaitingGame {
+  id: string;
+  title: string;
+  description: string;
+  controls: GameControl[];
+
+  init(ctx: GameContext): void | Promise<void>;
+  tick(deltaMs: number): void;
+  input(event: KeyEvent): GameAction | void;
+  render(frame: TerminalFrame): void;
+
+  pause?(): void;
+  resume?(): void;
+  stop?(): void;
+}
+
+export interface TerminalFrame {
+  width: number;
+  height: number;
+  write(row: number, col: number, text: string): void;
+  box(row: number, col: number, width: number, height: number, title?: string): void;
+  toString(): string;
+}
diff --git a/packages/tui/src/index.ts b/packages/tui/src/index.ts
index ba7cd74..4540f7e 100644
--- a/packages/tui/src/index.ts
+++ b/packages/tui/src/index.ts
@@ -1,6 +1,8 @@
 import { createPluginRegistry } from "@logicsrc/plugin-core";
 import { coinPayPlugin } from "@logicsrc/plugin-coinpay";
 import { uGigPlugin } from "@logicsrc/plugin-ugig";
+export { ArcadeRegistry, createDefaultArcadeRegistry, renderArcadeList, renderArcadeSnapshot, runArcadeSession } from "./arcade/index.js";
+export type { ArcadeEvent, GameAction, GameContext, GameControl, KeyEvent, TaskEvent, TaskSnapshot, TerminalFrame, WaitingGame } from "./arcade/index.js";
 
 export interface TuiState {
   did: string;