An app by valve software that sells downloads of games old and new and usurps you of your money.

Online gaming store/client/DRM service created by Valve corporation. Games can be bought on Steam, and there are often game sales and bonus pack deals for promotions (Bioshock sold for $10.00 on Boxing Day). There is also a social networking aspect a la Facebook, where you can make friends, join gaming groups, etc.

There are a growing number of games which are using Steam for DRM purposes. These games are, once installed, tied directly to Steam and not your computer. The pro to this is that you can play said game on ANY computer with Steam installed using your account. Games also update themselves automatically. The con is that is that Steam has to be running for the game to play, althought offline mode exists.

The other definitons are outdated and don't represent the improvements Steam has made over the years.

The Game client that distributes games such as Half Life 2, Counter-Strike Source, Team Fortress 2.

1. A program made by a bunch of sadist programmers at Valve. The target audience is obviously masochists. Gives you the strong urge to torture small fuzzy animals.

2. What happens when water gets too hot.

To dome a blunt or any other form of marijuana.

The most retarded program on Earth. Made specially for us.

A program that let people organize every half-life related game. which takes a million years to load. steam also comes with an anti cheat system called VAC, which also sucks.