Half-Life: Source
- REDIRECT Half-Life (video game)#Source Engine version{{Broken anchor|date=2025-04-07|bot=User:Cewbot/log/20201008/configuration|target_link=Half-Life (video game)#Source Engine version|reason= The anchor (Source Engine version) has been deleted.|diff_id=1284416911}} {{R to section}}
Category:Video games about alien invasions
Category:First-person shooters
Category:Fiction about physics
Category:Science fiction video games
Category:Single-player video games
Category:Source (game engine) games
Category:Fiction about teleportation
Category:Valve Corporation games
Category:Video games developed in the United States
Category:Video games scored by Kelly Bailey
Category:Video games set in laboratories
Category:Video games set in New Mexico
Category:Video games set in the 2000s
Category:Video games set in the United States