Apps

Everything on Steam, newest first: games, DLC, demos, playtests, software, tools, soundtracks and videos. New ones appear within seconds of Steam adding them.

What is an app?

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.)
The Universe of Death DemoApp 4519720	Demo	Aug 10, 2026	0	40–120†
BackRoomz: NULLApp 4519710	Game	—	—	—
SlashZero PlaytestApp 4519700	Playtest	Mar 17, 2026	—	—
1666: Amsterdam (Prologue)App 4519690	Demo	—	0	—
Valor 1944App 4519680	Game	Jul 14, 2026	0

We read every app on Steam continuously, so this list fills in and stays current on its own. Owners are a public estimate service's range 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.