| Title | Platform | Genre | Score | Release Date |
|---|---|---|---|---|
| Half-Life 2: The Black Box (Episode Two) | PC | Sci-Fi First-Person Shooter | Canceled | |
| Half-Life | PC | Sci-Fi First-Person Shooter | 9.4 | Oct 31, 1998 |
| Team Fortress Classic | PC | Modern First-Person Shooter | 1999 | |
| Half-Life: Adrenaline Pack | PC | Compilation | 2000 | |
| Half-Life Platinum | PC | Compilation | 2000 | |
| Deathmatch Classic | PC | Action | Jun 1, 2001 | |
| Half-Life Platinum | PC | Sci-Fi First-Person Shooter | 2002 | |
| Half-Life - Generation v3 | PC | Compilation | 2003 | |
| Day of Defeat | PC | Historic First-Person Shooter | 8.1 | May 6, 2003 |
| Counter-Strike | XBOX | Modern Tactical Shooter | 7.2 | Nov 18, 2003 |
| Codename: Gordon | PC | Sci-Fi Shooter | 2004 | |
| Ricochet | PC | Sci-Fi First-Person Shooter | Oct 6, 2004 | |
| Counter-Strike | PC | Modern First-Person Shooter | 8.4 | Oct 6, 2004 |
| Counter-Strike: Source | PC | Modern Tactical Shooter | Oct 7, 2004 | |
| Half-Life 2: Deathmatch | PC | Sci-Fi First-Person Shooter | Nov 16, 2004 | |
| Half-Life: Source | PC | Sci-Fi First-Person Shooter | Nov 16, 2004 | |
| Half-Life 2 | PC | Sci-Fi First-Person Shooter | 9.2 | Nov 16, 2004 |
| Counter-Strike 1: Anthology | PC | Modern First-Person Shooter | Sep 26, 2005 | |
| Half Life 1: Anthology | PC | Modern First-Person Shooter | Sep 26, 2005 | |
| Day of Defeat: Source | PC | Historic First-Person Shooter | 8.1 | Sep 26, 2005 |
| Half-Life 2: Lost Coast | PC | Sci-Fi First-Person Shooter | Oct 27, 2005 | |
| Half-Life 2 | XBOX | Sci-Fi First-Person Shooter | 8.3 | Nov 15, 2005 |
| Half-Life 2: Platinum | PC | Modern First-Person Shooter | 2006 | |
| Half-Life 2: Episode One | PC | Sci-Fi First-Person Shooter | 8.7 | Jun 1, 2006 |
| Half-Life 2 Survivor | ARC | Sci-Fi First-Person Shooter | Jun 27, 2006 | |
| Garry's Mod | PC | Miscellaneous | Nov 29, 2006 | |
| RIP Trilogy | PC | Sci-Fi Shooter | Jun 1, 2007 | |
| Half-Life 2: Episode Two | PC | Sci-Fi First-Person Shooter | Oct 10, 2007 | |
| The Orange Box | X360 | Sci-Fi First-Person Shooter | 9.5 | Oct 10, 2007 |
| The Orange Box | PC | Sci-Fi First-Person Shooter | 9.5 | Oct 10, 2007 |
| Portal | PC | Sci-Fi First-Person Shooter | 9.0 | Oct 10, 2007 |
| Team Fortress 2 | PC | Modern First-Person Shooter | 8.5 | Oct 10, 2007 |
| Half-Life 2: Episode Pack | PC | Sci-Fi First-Person Shooter | Apr 8, 2008 | |
| Portal: Still Alive | X360 | Sci-Fi First-Person Shooter | 8.5 | Oct 22, 2008 |
| Left 4 Dead | PC | Sci-Fi First-Person Shooter | 8.5 | Nov 18, 2008 |
| Left 4 Dead: Crash Course | X360 | Sci-Fi First-Person Shooter | Sep 29, 2009 | |
| Left 4 Dead: Crash Course | PC | Sci-Fi First-Person Shooter | Sep 29, 2009 | |
| Left 4 Dead 2 | X360 | Sci-Fi First-Person Shooter | 9.0 | Nov 17, 2009 |
| Left 4 Dead 2 | PC | Sci-Fi First-Person Shooter | 9.0 | Nov 17, 2009 |
| Left 4 Dead 2: The Passing | X360 | Sci-Fi First-Person Shooter | 7.5 | Apr 22, 2010 |
| Left 4 Dead 2: The Passing | PC | Sci-Fi First-Person Shooter | Apr 22, 2010 | |
| Half-Life 2: Deathmatch | MAC | Sci-Fi First-Person Shooter | May 12, 2010 | |
| Portal | MAC | Sci-Fi First-Person Shooter | May 12, 2010 | |
| Half-Life 2: Episode Two | MAC | Sci-Fi First-Person Shooter | May 26, 2010 | |
| The Orange Box | MAC | Sci-Fi First-Person Shooter | May 26, 2010 | |
| Half-Life 2 | MAC | Sci-Fi First-Person Shooter | May 26, 2010 | |
| Half-Life 2: Episode One | MAC | Sci-Fi First-Person Shooter | May 26, 2010 | |
| Team Fortress 2 | MAC | Modern First-Person Shooter | Jun 10, 2010 | |
| Counter-Strike: Source | MAC | Modern First-Person Shooter | Jun 23, 2010 | |
| Day of Defeat: Source | MAC | Historic First-Person Shooter | Jul 12, 2010 |
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