- Publisher: Valve Software
- Release Date: Canceled
- Summary: The final installment in the tripartite expansion of Valve's celebrated PC shooter takes the story even further outside City 17.
- Developer: Valve Software
- Genre(s): Action, Shooter, Shooter, First-Person, Sci-Fi, Sci-Fi, Arcade
- Cheats: On GameFAQs
- More Details and Credits »
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