Games developed by Valve
26 census-tracked games, ranked by total Steam reviews.
| # | Game | Reviews | Rating | Released |
|---|---|---|---|---|
| 1 | Counter-Strike 2 | 9.8M | 86% | 2012-08-21 |
| 2 | Dota 2 | 2.8M | 81% | 2013-07-09 |
| 3 | Team Fortress 2 | 1.2M | 91% | 2007-10-10 |
| 4 | Left 4 Dead 2 | 1.1M | 98% | 2009-11-16 |
| 5 | Portal 2 | 466k | 99% | 2011-04-18 |
| 6 | Half-Life 2 | 279k | 98% | 2004-11-16 |
| 7 | Counter-Strike | 261k | 97% | 2000-11-01 |
| 8 | Portal | 199k | 99% | 2007-10-10 |
| 9 | Counter-Strike: Source | 193k | 96% | 2004-11-01 |
| 10 | Half-Life | 164k | 96% | 1998-11-19 |
| 11 | Half-Life: Alyx | 105k | 98% | 2020-03-23 |
| 12 | Dota Underlords | 91k | 82% | 2019-06-20 |
| 13 | SteamVR | 86k | 87% | — |
| 14 | Left 4 Dead | 68k | 96% | 2008-11-17 |
| 15 | Counter-Strike Nexon | 43k | 67% | 2014-10-07 |
| 16 | Counter-Strike: Condition Zero | 28k | 91% | 2004-03-01 |
| 17 | Artifact | 25k | 47% | 2018-11-28 |
| 18 | Day of Defeat: Source | 24k | 92% | 2010-07-12 |
| 19 | Alien Swarm | 22k | 95% | 2010-07-19 |
| 20 | Half-Life 2: Deathmatch | 15k | 91% | 2004-11-01 |
| 21 | Team Fortress Classic | 9.3k | 87% | 1999-04-01 |
| 22 | Day of Defeat | 7.4k | 90% | 2003-05-01 |
| 23 | The Lab | 6.7k | 95% | 2016-04-05 |
| 24 | Ricochet | 6.3k | 83% | 2000-11-01 |
| 25 | Half-Life Deathmatch: Source | 5.6k | 76% | 2006-05-01 |
| 26 | Deathmatch Classic | 3.3k | 83% | 2001-06-01 |