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| Release Date | October 10, 2007 |
| Publisher | Valve, EA UK |
| Total Rating | 90% |
| Content Rated | T (Teen) |
| Game Modes | Single player, Multiplayer, Co-operative |
| Player Perspectives | First person |
| Genres | Shooter, Puzzle |
| Platforms | Linux, PC (Microsoft Windows), PlayStation 3, Xbox 360, Mac |
