![Steam for mac Portal ](http://sanziro.com/wp-content/uploads/2010/05/steam_for_mac_portal_.png)
Valve has released [Steam for Mac](http://store.steampowered.com/browse/mac), its online gaming platform which had been exclusively for PC users since 2004. Now you can play the steam powered games on both PC and Mac, and yes Bootcamp is not required.
57 games are made available for the Mac as part of the launch: Portal, TorchLight, Steam Play etc. Notably missing are games such as Half-Life, Left 4 Dead and Team Fortress but no doubt these popular titles will be made available for the Mac eventually. For each Wednesday for the next few weeks Valve will release a new set of games playable on the Mac.
To celebrate the Steam for Mac launch, Portal is now free until 24th May. [Download Steam Now](http://store.steampowered.com/about/).