Achievements
51 achievements
Description
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
- Reviews
- Overwhelmingly Positive
- SteamDB Rating
- 97.70%
- Release Date
- Steam Deck Compatibility
- Verified
Tags
Type
Game |
Features
Crossplay Platforms
Linux |
Mac |
PlayStation 3 |
Windows PC |
For more details, see Crossplay Games.
Developer
Valve | 170 |
Publisher
Valve | 126 |