Post
The real mechanic is lying to your friends with enough confidence that they help you do it.
Social-deduction games assign hidden roles and force players to infer intention through conversation, accusation, and behavior. Their core systems are social rather than physical. Evidence matters, but so do tone, timing, and who sounds a little too eager to clear themselves.
Example
Mafia and Werewolf built the social template, Among Us translated it for mass online play, and games like Project Winter layered survival tasks on top of the same trust-destruction machine.
Why it matters
Social deduction is one of the strongest demonstrations that other people remain the most interesting system in games when you give them permission to lie.
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