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.) |
|---|---|---|---|---|
 R.U.S.E Mac DLC2App 21963 | DLC | — | — | — |
 Far Cry 2: Fortunes PackApp 21960 | DLC | — | — | — |
 Gotham City Impostors Coming Soon DLC 4App 21228 | DLC | — | — | — |
 Gotham City Impostors Coming Soon DLC 3App 21227 | DLC | — | — | — |
 Gotham City Impostors Coming Soon DLC 2App 21226 | DLC | — | — | — |
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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.
| DLC |
| — |
| — |
| — |
 Gotham City Impostors Costume Coin Boost - SoloApp 21224 | DLC | — | — | — |
 Gotham City Impostors Mega XP Boost - TeamApp 21223 | DLC | — | — | — |
 Gotham City Impostors Mega XP Boost - SoloApp 21222 | DLC | — | — | — |
 Gotham City Impostors Steamy Punk PackApp 21221 | DLC | — | — | — |
 Gotham City Impostors Premium Card Pack 7App 21220 | DLC | — | — | — |
 Gotham City Impostors Premium Card Pack 6App 21219 | DLC | — | — | — |
 Gotham City Impostors Premium Card Pack 5App 21218 | DLC | — | — | — |
 Gotham City Impostors Premium Card Pack 4App 21217 | DLC | — | — | — |
 Gotham City Impostors Unlock: Premium Card Pack 3App 21216 | DLC | — | — | — |
 Gotham City Impostors Gotham Mascot - Killah KittehApp 21215 | DLC | — | — | — |
 Gotham City Impostors Gotham Mascot - HarletteApp 21214 | DLC | — | — | — |
 Gotham City Impostors Gotham Mascot - Pretty PoisonApp 21213 | DLC | — | — | — |
 Gotham City Impostors Croc PetApp 21212 | DLC | — | — | — |
 Gotham City Impostors Unlock: Personality pack (CUT)App 21211 | DLC | — | — | — |
 Gotham City Impostors Calling Card Pack 2App 21210 | DLC | — | — | — |
 Gotham City Impostors Calling Card Pack 1App 21209 | DLC | — | — | — |
 Gotham City Impostors Unlock: Support item pack (CUT)App 21208 | DLC | — | — | — |
 Gotham City Impostors Unlock: Gadgets pack (CUT)App 21207 | DLC | — | — | — |
 Gotham City Impostors Unlock: Character pack (CUT)App 21206 | DLC | — | — | — |
 Gotham City Impostors Unlock: Weapon pack (CUT)App 21205 | DLC | — | — | — |
 Gotham City Impostors Dress Up PackApp 21204 | DLC | — | — | — |
 Gotham City Impostors Unlock: Ninja Costume (CUT)App 21203 | DLC | — | — | — |
 Gotham City Impostors Rodeo Pirate PackApp 21202 | DLC | — | — | — |
 Gotham City Impostors Double XP - TeamApp 21201 | DLC | — | — | — |
 Gotham City Impostors Double XP - SelfApp 21200 | DLC | — | — | — |
 F.E.A.R. 3 ShredderApp 21160 | DLC | — | — | — |
 F.E.A.R. 3 HammerApp 21150 | DLC | — | — | — |
 The Witcher: Director's Cut UpdateApp 20902 | DLC | Aug 5, 2009 | — | 440–1.3K† |
 ValveTestApp20005App 20005 | DLC | — | — | — |
 ValveTestApp20004App 20004 | DLC | — | — | — |
 Defense Grid: The Awakening - Community LevelsApp 18534 | DLC | — | — | — |
 Defense Grid: Resurgence Map Pack 4App 18533 | DLC | — | — | — |
 Defense Grid: Resurgence Map Pack 3App 18532 | DLC | — | — | — |
 Defense Grid: Resurgence Map Pack 2App 18531 | DLC | — | — | — |
 Defense Grid: Resurgence Map Pack 1App 18530 | DLC | — | — | — |
 Defense Grid: Containment DLCApp 18523 | DLC | Jan 23, 2013 | — | 420–1.3K† |
 Defense Grid: The Awakening - You Monster DLCApp 18522 | DLC | Dec 7, 2011 | — | 900–2.7K† |
 Defense Grid: Resurgence Map Pack 4App 18521 | DLC | Jun 23, 2010 | — | 280–840† |
 Defense Grid: Resurgence Map Pack 3App 18520 | DLC | Jun 16, 2010 | — | 260–780† |
 Defense Grid: Resurgence Map Pack 2App 18509 | DLC | Jun 9, 2010 | — | 260–780† |
 Defense Grid: Resurgence Map Pack 1App 18508 | DLC | Jun 2, 2010 | — | 360–1.1K† |
 Defense Grid: Borderlands DLCApp 18507 | DLC | — | — | — |
 Crazy Machines 2: Back to the Shop Add-OnApp 18440 | DLC | Dec 12, 2008 | 0 | — |
 Crazy Machines 2: Time Travel Add-OnApp 18408 | DLC | Mar 11, 2011 | — | 40–120† |
