Steam offers many games, for a full list of games Steam offers visit their web site at steampowered.com.
Some of the games:Looking for screen shots? There are screen shots of the different games in the gmod and css section.
Steam is a content delivery, digital rights management, multiplayer and communications system developed by Valve Corporation. It is currently used to digitally distribute and manage games including Half-Life, Half-Life 2, Counter-Strike, Counter-Strike:Source, Day Of Defeat, Day Of Defeat:Source, and more.
Check out their web site at: steampowered.com
Have a look at the Counter-Strike:Source Section. Counter-Strike:Source is a fun multiplayer first person shooter.
There are two main types of maps: bomb maps and hostage maps.
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Check out the Garry's Mod Section. Gmod is a awesome mod for Half-life 2.