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Sanitism: A rare mental illness with an unknown origin that causes its victims to lose their rationality and empathy, leading to uncontrollable, violent behavior. The disease induces a state of severe aggression, prompting individuals to attack anyone in their vicinity.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Social Deduction Fest ends
Official stores with direct support.
A plague born of ignorance is spreading in the shadows.
Sanitism is a unique multiplayer online social deduction game. You will play as a member of a special investigation team, heading to the target location to complete assigned tasks within a limited time, work with your teammates to root out hidden threats and eliminate the growing disaster. Seek every possible means of survival—collect randomly generated items, trade with in-world merchants, and adapt to the dangers of a constantly shifting environment.
Online Multiplayer: Up to 8 players can participate in intense and suspenseful online sessions.
Diverse Playable Characters: Choose from a range of unique characters, each with their own distinct traits.
Randomized Items and Weapons: Every match features a different set of items and gear, procedurally generated for unpredictable gameplay.
Built-in Voice Chat: Communicate with your team in real time using the in-game voice chat system.
Dynamic Identity System: A player's role may shift based on their actions—trust is a dangerous game.
And above all, keep your sanity.
Audio & text: English
Text only: Simplified Chinese, Japanese
