The Great Steamworks Migration continues. This time, it's Borderlands. The shoot-'n-loot FPS's co-op multiplayer has been unavailable since Gamespy's demise. Now it's back, thanks to the introduction of the Steamworks multiplayer infrastructure.

For owners of the physical-disc edition, you can activate a Steam copy using the "Granting Tool", found in Steam's Tools menu. You can see full instructions here .

Previously, a Borderlands patch removed SecuROM DRM from the game and its DLC.

There's been a recent trend of games switching to Steamworks, thanks both to Gamespy's death and Games for Windows Live's presumed shut-down. Recently Dawn of War 2 escaped from GfWL's clutches, securing its future for hopefully years to come. Of course, if Steam ever closes, we're all screwed.

Gearbox are currently working on Borderlands: The Pre-Sequel. For more on that game, check out Tom's recent hands-on report .