
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
Developer: Valve
Publisher: Valve
Release Date: April 18, 2011
Tags: 3D Platformer Action Action-Adventure Atmospheric Comedy Co-op Dark Humor Female Protagonist First-Person FPS Funny Level Editor Physics Platformer Puzzle Puzzle Platformer Science Sci-fi Singleplayer Story Rich
Reviews: 382095 (Followers)
Followers: 378481
Price:
USD: $9.99
Platforms: Windows Linux
Languages: English*, French*, German*, Spanish - Spain*, Czech, Danish, Dutch, Finnish, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese - Portugal, Romanian, Russian*, Simplified Chinese, Swedish, Thai, Traditional Chinese, Turkish, Bulgarian, Greek, Portuguese - Brazil, Spanish - Latin America, Ukrainian<br>*languages with full audio support
Steam Achievements: 51
Estimated Sales: $114,513,871
Estimated Wishlists: 4,541,772
Metacritic Score: 95
Categories: Camera Comfort Captions available Commentary available Co-op Custom Volume Controls Family Sharing Full controller support Includes level editor Multi-player Online Co-op Playable without Timed Input Remote Play on Phone Remote Play on Tablet Remote Play on TV Remote Play Together Save Anytime Shared/Split Screen Shared/Split Screen Co-op Single-player Stats Steam Achievements Steam Cloud Steam Trading Cards Steam Workshop Stereo Sound Surround Sound
AppID: 620 (game) - 12 Screenshots, 17 Videos on store page.
Site by Dragon Dropper © 2025-2026
Privacy Policy