Read the prompt.
“Name a planet.” You have 30 seconds to find an answer that still fits the rules.
Forget the first answer that comes to mind. Think stranger. Think smarter. In this trivia game, the rarest correct answer wins.
YOU HAVE 30 SECONDS
Five quick questions. Find the least obvious correct answer. Your answer's rarity is the whole game.
You'll know the answers. The trick is finding the one that nobody thinks of first. Every round starts with a fresh question and ends with a delightfully unpredictable reveal.
“Name a planet.” You have 30 seconds to find an answer that still fits the rules.
Mars is right. But maybe Neptune is the more unexpected pick. Can you go rarer?
See your server-verified score, then challenge a friend to play your exact five and beat your picks.
Finish a game and challenge a friend with one tap. They play your exact five prompts, and every answer unlocks side-by-side — but only after they've locked in their own.
Our current bank spans space, geography, science, language, history and everyday knowledge — 30 reviewed questions, each with a complete, sourced answer set. New categories launch only when their full answer sets are reviewed.
Off-the-planet answers
Unexpected places
Think beyond the obvious
Every round is different
Outlier Duel is an independent rare-answer game — same love of surprising correct answers, our own five-round format and per-round friend duels. See the honest side-by-side comparison, or just start playing.
It's trivia where any correct answer counts — but the least obvious correct answer scores most. Instead of one right answer, every question has a small, fully enumerated set of valid answers with different rarity points.
Free and no signup. Games run in your browser with server-verified scoring; you can play the daily five, replay unlimited sets, and duel friends without ever creating an account.
Everyone worldwide plays the same five questions each UTC day, frozen at midnight. Come back tomorrow for a fresh five. Your clock and score are kept by the server, so refreshing the page never buys extra time.
Finish any game, tap “Challenge a friend,” and they play your exact five prompts. Their answers unlock yours round by round — only after they've submitted their own. See the full rules →
A few questions. A little creative thinking. A new reason to brag to your friends.