The reason why some people gave up cocaine and marijuana but still spend money as if they were buying drugs.

Thriving online community of children and pedofiles

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The other definitons are outdated and don't represent the improvements Steam has made over the years.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

A way of ruining games quickly and efficiently, without having to confront the people who play it.

A piece of shitware which forces you to connect to DDoS'ed servers.

An idea originally thought up by Hitler

Shit.

The finest example of a commercialization of a popular game. Steam has only one main purpose and that's to fill Valves pockets. Steam takes away your freedom by forcing you to autoupdate annoying updates almost every week. Valve makes it impossible to add custom features, like skins or tools. Programmed by the noobs at Valve Corp.