Steam
Store data
- Store status
- Coming soon
- Scheduled release
- 21 October 2026
- Positive reviews
- —
- Total reviews
- 0
- Release date
- 21 October 2026
Steam release scheduled · App 5227910
Messa Anomaly
- Single-player
- Family Sharing
Player tracking—Begins when the game launches
Release date21 October 2026Scheduled by Steam
Store statusComing soonSteam store listing
Steam rating—0 reviews
Steam metadata
Game information
Details supplied by the Steam store
- App ID
- 5227910
- App type
- Game
- Developer
- 1,5 Games ↗
- Publisher
- 1,5 Games ↗
- Supported systems
- Windows
- Genres
- Adventure, Indie, Simulation
- Release date
- 21 October 2026
- Last player update
- Awaiting first sample
Steam store data
System requirements
Supplied by the developer on Steam
Windows
Minimum
- Requirement
- Requires a 64-bit processor and operating system
- OS
- Windows 10 64-bit
- Processor
- Intel Core i5-4590 or AMD Ryzen 3 1200
- Memory
- 8 GB RAM
- Graphics
- NVIDIA GeForce GTX 970 or AMD Radeon RX 570
- DirectX
- Version 11
- Storage
- 3 GB available space
- Additional Notes
- 64-bit processor and operating system required
Recommended
- Requirement
- Requires a 64-bit processor and operating system
This range will fill as SteamWatch collects more samples.
24-hour and 7-day views use hourly peaks from ten-minute samples. Longer views use retained daily peaks. Up to 24 recent event markers are shown per layer.
Twitch
Twitch stats
Awaiting the first Twitch sample.
Long-term history
Monthly players breakdown
Calculated from SteamWatch samples
Monthly data will appear after the first successful player sample.
Price history is not available for this title yet.
Positive rating—
Positive reviews0
Negative reviews0
Review history is not available for this range yet.
Recent views use Steam's daily review activity. Longer views use weekly totals, retained by SteamWatch.
About this game
Description
Supplied by the Steam store
Messa Anomaly is a first-person psychological horror game about observation, memory, and the unsettling fear of the unknown.
You are trapped in a museum during a night shift that never seems to end. Walk through repeating corridors, study the exhibits, and notice what has changed. When something feels wrong, trust your memory and choose your path carefully.
WATCH THE MUSEUM
Each loop may hide an anomaly: a displaced object, a broken pattern, an impossible sound, or something watching from where it should not be.
MAKE YOUR CHOICE
Decide whether the corridor is normal or has changed. Correct choices bring you closer to the exit. Mistakes draw you deeper into the museum.
FEATURES
• First-person psychological horror
• Observation-based anomaly hunting
• Random events that make every playthrough unpredictable
• Atmospheric museum spaces
• No combat — attention is your only defense
Steam gallery
Screenshots
5 available
Steam has not listed DLC or a demo for this game yet.
Steam global stats
Achievements
0 achievements
No public achievements found.This game may not use Steam achievements, or its global unlock data may not be public yet.
Saved from Steam
Patches
0 tracked updates
No patch posts tracked yet.SteamWatch will check again automatically. Some developers publish updates outside Steam announcements.
Game activity
Recent changes
Steam events and SteamWatch observations
- SteamRelease
Release scheduled on Steam
Steam currently lists 21 Oct 2026 as the release date.