Company

Valve

12 developed · 4 published

Developed

Portal 2

Half-Life 2

Half-Life 2 2004

Half-Life

Left 4 Dead 2

Left 4 Dead 2 2009

Team Fortress 2

Team Fortress 2 2007

Dota 2

Counter-Strike 2

Counter-Strike 2 2023

Half-Life: Source

Half-Life: Source 2004

Half-Life: Uplink

Half-Life: Uplink 1999

Left 4 Dead 2: The Passing

Left 4 Dead 2: The Passing 2010

Portal 2: Peer Review

Portal 2: Peer Review 2011

Deadlock

Published

Garry's Mod

Garry's Mod 2004

Half-Life: Opposing Force

Half-Life: Opposing Force 1999

Half-Life: Blue Shift

Half-Life: Blue Shift 2001

Left 4 Dead 2: The Last Stand

Left 4 Dead 2: The Last Stand 2020

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