As promised, Valve have just announced that the debut Mac version of their digital download game platform Steam is now available, alongside a batch of nearly 60 games, including a free download of Valve's own Portal (through May 24th).
While the selection of AAA 3D titles is more limited than its Windows counterpart for now, it does include good representation from the adventure game set, like LucasArts and Telltale, and by the indies, including Braid and a discount 5-pack of World of Goo, And Yet It Moves, Galcon Fusion, Osmos and Machinarium.
Also, "Steamplay" titles previously bought through the Windows version of the client are automatically activated in your new Mac account -- the company promises more of those every Wednesday through the coming months. Download the client here [.dmg link], and see Valve's Mac section here.
Click through for the full list of launch titles.
And Yet It Moves
Atlantis Sky Patrol
Bejeweled 2 Deluxe
Bob Came in Pieces
Chocolatier: Decadence by Design
City of Heroes: Architect Edition
Civilization IV: The Complete Edition
Diner Dash: Hometown Hero
DinerTown Detective Agency
Dream Chronicles: The Chosen Child
Escape Rosecliff Island
Football Manager 10
Guns of Icarus
Hotel Dash Suite Success
Indiana Jones and the Fate of Atlantis
Indiana Jones and the Last Crusade
Max and the Magic Marker
The Nightshift Code
Nightshift Legacy: The Jaguar's Eye
Professor Fizzwizzle and the Molten Mystery
Sam & Max: The Devil's Playhouse
Tales of Monkey Island Season 1
Trijinx: A Kristine Kross Mystery
Valarie Porter and the Scarlett Scandal
Wedding Dash 2: Rings Around the World
World of Goo