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.) |
|---|---|---|---|---|
 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 | — | — | — |
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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 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 | — | — | — |
 Gotham City Impostors BetaApp 21180 | Game | — | 0 | — |
 Gotham City ImpostorsApp 21170 | Game | — | 0 | — |
 F.E.A.R. 3 ShredderApp 21160 | DLC | — | — | — |
 F.E.A.R. 3 HammerApp 21150 | DLC | — | — | — |
 LEGO: UniverseApp 21140 | Game | — | 0 | — |
 LEGO® Harry Potter: Years 1-4App 21130 | Game | Jun 25, 2010 | 139 | 1M–2M |
 F.E.A.R.: Perseus Mandate App 21120 | Game | — | 15 | 1M–2M |
 F.E.A.R.: Extraction Point App 21110 | Game | — | 21 | 1M–2M |
 F.E.A.R. 3App 21100 | Game | Jun 21, 2011 | 32 | 1M–2M |
 F.E.A.R.App 21090 | Game | May 21, 2010 | 71 | 1M–2M |
 Terminator SalvationApp 21080 | Advertising | May 19, 2009 | 0 | 180–540† |
 Wanted: Weapons of FateApp 21070 | Advertising | Mar 23, 2009 | 0 | 40–120† |
 Watchmen: The End Is Nigh Part 2 DemoApp 21040 | Demo | — | 0 | — |
 Watchmen: The End is Nigh Part 2App 21030 | Game | Jul 29, 2009 | 2 | 20K–50K |
 Watchmen: The End is Nigh DemoApp 21020 | Demo | Mar 4, 2009 | 0 | 80–240† |
 Watchmen: The End is NighApp 21010 | Game | Mar 4, 2009 | 5 | 50K–100K |
 LEGO® Batman™: The VideogameApp 21000 | Game | Sep 29, 2008 | 160 | 500K–1M |
 The Witcher 2: Bonus ContentApp 20930 | Tool | — | 0 | — |
 The Witcher 2 Pre-OrderApp 20929 | Game | — | 0 | — |
 The Witcher 2: Assassins of Kings Enhanced EditionApp 20920 | Game | Apr 17, 2012 | 738 | 2M–5M |
 The Witcher: Director's Cut UpdateApp 20902 | DLC | Aug 5, 2009 | — | 440–1.3K† |
 The Witcher: Enhanced Edition Director's CutApp 20900 | Game | Sep 19, 2008 | 795 | 2M–5M |
 Rugby ChallengeApp 20840 | Game | — | 0 | — |
 Shatter - Original SoundtrackApp 20828 | Soundtrack | Jul 30, 2012 | — | 360–1.1K† |
 ShatterApp 20820 | Game | Mar 15, 2010 | 0 | 200K–500K |
 SIFApp 20800 | Game | — | 0 | — |
 Mr. Robot DemoApp 20730 | Demo | Nov 3, 2008 | 0 | 20–60† |
