• Lateral thinking puzzles
  • Mystery
  • Deduction

Riddle Royale

An AI-generated, never-repeating deduction survival gamble. 100 players, one elimination bracket — reason your way to staying alive. The more who die, the bigger the prize pool you can split; but one wrong answer and you're out with nothing. Cash out, or push your luck to the end?

AI credits

How to play

  1. You're given a death that makes no sense. Your job is to reconstruct what actually happened.
  2. Question the host to narrow it down. Each question spends one of your questions, and the host answers only yes, no, or irrelevant.
  3. Submit your theory when you're ready — judgment is immediate and final. Solve it and you survive while others are eliminated; miss and you're out with nothing. After each round you can cash out your share or stay at the table, and the last player standing takes the whole pot.

What makes it different

Lateral thinking puzzles — situation puzzles, or 海龟汤 as they're known in Chinese — have always had a staffing problem. They need a host who already knows the answer and can field any question a player invents, which is why most people meet them as a list of riddles with the answers printed underneath. Reading the answer is not playing.

Here the host is generated and answers the questions you actually ask, in whatever order you ask them, so the puzzles don't run out and you can't skip to the back of the book. You're not recalling a riddle you've seen before; you're interrogating one that has never been posed.

The second layer is greed. Every player who guesses wrong is eliminated, and the pot they leave behind is split among the survivors — so the longer you stay, the more each remaining round is worth, and the more you have to lose by getting one wrong. You may walk away with your share after any round. The game will never tell you when to.

Frequently asked questions

Do I need to pay to play Riddle Royale?
You get 300 free credits when you sign up, and credits never expire. The game spends credits only when it generates new AI content, based on actual usage — there's no fixed per-round fee and no subscription required to start.
What is a lateral thinking puzzle?
A lateral thinking puzzle — also called a situation puzzle, and known in Chinese as 海龟汤 — gives you a strange outcome without the events that led to it. You reconstruct the missing story by asking a host questions that can be answered yes or no. The solution is rarely reachable by working forward from the facts; you get there by testing assumptions the scenario invited you to make.
Do I need a host or other players?
No. Riddle Royale is single-player and the host is part of the game, so you never need someone who already knows the answer sitting across from you. There's no lobby and nothing to schedule.
Do the puzzles repeat?
The cases are generated rather than drawn from a fixed list, so there is no set of answers to look up and no point at which you've seen them all.
What happens if I get it wrong?
You're eliminated and you leave with nothing — submitting a theory is final, and there is no reveal button and no retry on that case. That's what makes cashing out a real decision rather than a formality.
Can I play in Chinese?
Yes. The game runs in the browser in English and Simplified Chinese, and the Chinese edition is written as 海龟汤 rather than translated from the English.