A game of Twenty Questions against an AI running entirely on your own computer. Ask and answer with Ganymede and Europa — two beings piecing together the last records of a vanished humanity.

▸ An AI That Lives and Breathes Inside Your PC IDEA: 20Q is a game where you play Twenty Questions against an artificial intelligence that runs entirely on your computer. Every word you think of, every question you ask — none of it ever leaves your device.▸ More Than Just Twenty Questions Your opponent isn't working from a script. It's an AI that actually reasons. To guess your word, it narrows down possibilities question by question. When you're the one asking, it answers based on facts and logic.▸ Three Ways to Play<ul class="bb_ul"><li>I'll Guess — The AI picks a word. Figure it out in 20 yes-or-no questions.</li><li>I'll Answer — You pick the word. The AI tries to deduce it. Don't let it win.</li><li>Co-op — An AI partner suggests questions and works alongside you toward the answer.</li></ul>▸ Two Characters Ganymede, a dimension-watcher driven by curiosity. Europa, a recorder of human civilization. Through every game you play, these two beings work to understand what it means to be human.▸ Multiple Endings Why are you playing Twenty Questions with them? Beyond the light-hearted deduction game, a quietly unfolding science fiction story is waiting for you.▸ More to Discover<ul class="bb_ul"><li>12-chapter campaign (in development)</li><li>Puzzle minigames</li><li>Post-game AI review — the AI replays your questions and scores your reasoning</li><li>Undo, hints, difficulty settings, and a personal game history archive</li><li>Korean &amp; English supported</li></ul>

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IDEA:20Q Achievements