Update: The service is now live for Mac users along a sizeable list of games, including Portal, which will be available as a free download for everybody until the 24th of May.

Today's a good day for Mac users around the world, especially those who enjoy their fair share of gaming. Valve's popular game distribution platform, Steam, is now available for Apple's computer platform alongside a handful of titles that have been recompiled to run natively on Intel-based Macs. The actual service doesn't seem to be open to the public at large just yet, but you can install the client nonetheless and sit tight for the rollout later today.

In terms of game availability, Valve said that Runic Games' critically acclaimed Torchlight will be available today, and it seems that at least both Portal and Team Fortress 2 will be joining the fun too. Meanwhile, Lucas Arts has revealed that Indiana Jones and the Fate of Atlantis, Indiana Jones and the Last Crusade, Loom, and The Dig will all arrive on Steam at $4.99 each or collectively in a limited time $9.99 bundle.

The first collection of Mac titles will feature something Valve is calling "Steam Play," which lets customers who have purchased a game for Windows or Mac play it on either platform at no extra cost. Additionally, starting today, game developers can access the Steamworks's publishing tools to get their own games onto the Steam platform.