Half-Life 2
Half-Life 2 puts Gordon Freeman in City 17 with a gravity gun and no cutscenes: every scene is staged while you are still holding the camera. Physics is not decoration — it is a tool and a weapon.
Games tagged valve
3 games in the database.
Games tagged valve
Left 4 Dead 2
Left 4 Dead 2 sends four survivors across the American South while an AI director decides when to send a horde and where to leave supplies, so no two runs of a map play out the same.
Team Fortress 2
Team Fortress 2 is a class-based team shooter with nine roles, from the Spy who disguises as your own teammates to the Engineer whose sentry gun everyone ends up standing behind. Each class answers a different question the map asks.