Everything on Steam, newest first: games, DLC, demos, playtests, software, tools, soundtracks and videos. New ones appear within seconds of Steam adding them.
On Steam, an app is one product: a game, a DLC, a demo, a soundtrack, a piece of software. Each has its own number (the App ID, the number in its store link), usually its own store page and community hub, and it is what shows up in your library.
You don't buy apps directly: you buy or activate a package, which unlocks one or more apps.
| App | Type | Released | Playing now | Owners (est.) |
|---|---|---|---|---|
 Darwinia Press ReviewApp 1504 | Game | — | 0 | — |
 DarwiniaApp 1500 | Game | Dec 1, 2005 | 1 | 0–20K |
 SiN Episodes: EmergenceApp 1320 | Game | — | 0 | — |
 SiN Gold (1998)App 1313 | Game | Mar 18, 2020 | 1 | 100K–200K |
 SiN 1 MultiplayerApp 1309 | Game | May 10, 2006 | 0 | 200K–500K |
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We read every app on Steam continuously, so this list fills in and stays current on its own. Owners are SteamSpy's estimate for games and software; † marks an estimate from the app's Steam review count (about 20 to 60 owners per review), used for DLC, soundtracks and the rest.
| Game |
| May 10, 2006 |
| 2 |
| 100K–200K |
 Killing Floor BetaApp 1270 | Game | — | 0 | — |
 Killing FloorApp 1250 | Game | May 14, 2009 | 195 | 2M–5M |
 Red Orchestra BetaApp 1210 | Game | — | 0 | — |
 Red Orchestra: Ostfront 41-45App 1200 | Game | Mar 14, 2006 | 3 | 500K–1M |
 Rag Doll Kung FuApp 1002 | Game | Oct 12, 2005 | 0 | 20K–50K |
 Rag Doll Kung Fu BetaApp 1001 | Game | — | 0 | — |
 Source SDK Test ToolApp 882 | Game | — | 0 | — |
 ValveTestApp852App 852 | Game | — | 0 | 0–20K |
 Dota 2 Private Beta ServerApp 817 | Game | — | 0 | — |
 Counter-Strike: Global Offensive PS3 DSApp 790 | Game | — | 0 | — |
 Counter-Strike 2App 730 | Game | Aug 21, 2012 | 1,109,124 | 100M–200M |
 Counter-Strike: Global Offensive Beta Dev PS3App 720 | Game | — | 0 | — |
 ValveTestApp700App 700 | Game | — | 0 | — |
 Portal 2App 659 | Game | — | 0 | — |
 Alien SwarmApp 630 | Game | Jul 19, 2010 | 23 | 2M–5M |
| Portal 2App 620 | Game | Apr 19, 2011 | 1,705 | 5M–10M |
 DotA 2 Dedicated ServerApp 580 | Game | — | 0 | — |
 Dota 2App 570 | Game | Jul 9, 2013 | 744,253 | 56.2M–168.7M† |
 Left 4 Dead 2App 550 | Game | Nov 17, 2009 | 24,706 | 50M–100M |
 Left 4 Dead DemoApp 530 | Game | — | 0 | — |
 Left 4 DeadApp 500 | Game | Nov 18, 2008 | 454 | 5M–10M |
 ValveTestApp490App 490 | Game | — | 0 | — |
 SpacewarApp 480 | Game | — | 50,298 | — |
 Team Fortress 2App 440 | Game | Oct 10, 2007 | 98,493 | 50M–100M |
 Half-Life 2: Episode TwoApp 420 | Game | Oct 10, 2007 | 61 | 5M–10M |
 PortalApp 400 | Game | Oct 10, 2007 | 467 | 10M–20M |
 Half-Life 2: Episode OneApp 380 | Game | Jun 1, 2006 | 12 | 5M–10M |
 Half-Life Deathmatch: SourceApp 360 | Game | May 1, 2006 | 20 | 5M–10M |
 Half-Life 2: Lost CoastApp 340 | Game | Oct 27, 2005 | 0 | 20M–50M |
 Half-Life 2: DeathmatchApp 320 | Game | Nov 1, 2004 | 129 | 10M–20M |
 Day of Defeat: Source Press ReviewApp 304 | Game | — | 0 | — |
 Day of Defeat: SourceApp 300 | Game | Jul 12, 2010 | 283 | 2M–5M |
 Half-Life: SourceApp 280 | Game | Jun 1, 2004 | 32 | 2M–5M |
 Counter-Strike: SourceApp 240 | Game | Nov 1, 2004 | 2,845 | 10M–20M |
 Half-Life 2App 220 | Game | Nov 16, 2004 | 1,726 | 10M–20M |
 Source Dedicated ServerApp 210 | Game | — | 0 | — |
 Half-Life: Blue ShiftApp 130 | Game | Jun 1, 2001 | 38 | 1M–2M |
 Natural SelectionApp 120 | Game | — | 0 | — |
 Counter-Strike: Condition Zero Deleted ScenesApp 100 | Game | — | 52 | 10M–20M |
 Counter-Strike: Condition ZeroApp 80 | Game | Mar 1, 2004 | 456 | 5M–10M |
 Half-LifeApp 70 | Game | Nov 19, 1998 | 749 | 10M–20M |
 RicochetApp 60 | Game | Nov 1, 2000 | 2 | 200K–500K |
 Half-Life: Opposing ForceApp 50 | Game | Nov 1, 1999 | 113 | 2M–5M |
 Deathmatch ClassicApp 40 | Game | Jun 1, 2001 | 3 | 5M–10M |
