Welcome to MysteryApartment, a psychological survival game where twenty players are trapped inside a strange apartment governed by deadly rules. Each night, every player must write down the number floating above their head—one mistake means instant death. But the real terror lies elsewhere: among the twenty players, one is secretly a demon.

Form alliances, exchange numbers, observe behavior, and uncover lies. But be careful—trust can be a weapon, and fear can turn anyone into a monster. Food is limited, rules are strict, and every decision may push you closer to survival… or to becoming the demon’s next victim.

Can you identify the demon before the apartment consumes everyone? Or will paranoia tear the group apart first?

Enter the game. Follow the rules. Survive the night.