Updates v1.0.1<br>- Improved app stability and performance.
Only the current version so far — new entries appear as the game ships updates.
Trailer
Room 303 : Mystery Horror Game is an adventure game by MechaZeroGame Studio with 1,000+ downloads (about 4.6K estimated). +3 installs in the last 7 days. Rated 2.7 from 71 ratings. Released Nov 24, 2025. Install growth, rank history, SDKs and ad networks.
From the store listing: “A hotel room that never stays the same.You wake up alone inside Room 303, with no memory of how you got there. The door is locked. The lights feel wrong. And every time you turn your head… something inside the room moves.
Room 303 is a short first-person psychological horror game designed for mobile. No monsters…”