An online lie detector you can actually play. The AI tells short stories, some true and some with one planted lie, and you call it — then it shows you the tell you caught or missed. Flip it round and let it interrogate you. Free, no sign-up.
The lies are built from cues researchers actually find useful: distancing language, timelines that do not add up, unprompted denials, stories that are too tidy. Eye direction and nervousness are not on the list — and the game tells you why.
Spot the lie in the AI's stories with two follow-up questions per round, or tell your own story and face three interrogation questions and a verdict with a confidence score.
Ask for the party classic and the AI deals three statements about a character. Take turns and see who fools whom.
Is this a real lie detector?
No. It is a game that teaches the cues people use to judge honesty; text alone is weak evidence and the AI says so.
Can I test whether a friend is lying?
Play Interrogate Me with your own stories for fun, but the game will not judge real third parties.
Is it free?
Yes, free and no sign-up needed.
How is it scored?
Two points for the right call plus the right tell, one for the right call, and a running accuracy percentage.