Valve Software has flipped the switch. You can now officially download Steam for Mac OS X. Do so now and Valve will throw in a copy of the original Portal for free.
The first-person puzzle hit can be yours for zero dollars or zero Valve Points until May 24, when Portal returns to its regular price. We'd say that's motivation enough to download Steam for Mac, but you may say differently. And you'd be wrong. Update: Portal is also currently free to Steam users on Windows!
Portal is the only Valve developed game available right now, sadly, but other developers including LucasArts and Telltale help to make up for the slim pickings. A full list of what's available for the Mac is available at the official Steam web site, along with a handy link to download the OS X version of Valve's digital distribution platform.
A long list of currently available games is also below, with Valve promising new games "highlighting an area of Steam functionality" every Wednesday. The following games are all Steam Play releases, meaning that you can purchase a title on one Steam platform, say Windows, and play it on another, like Mac OS X.
- And Yet It Moves
- Atlantis Sky Patrol
- Bejeweled 2 Deluxe
- Bob Came in Pieces
- Bookworm Deluxe
- Braid
- Brainpipe
- Chocolatier: Decadence by Design
- Chuzzle Deluxe
- City of Heroes: Architect Edition
- Civilization IV: The Complete Edition
- Cooking Dash
- Diaper Dash
- The Dig
- Diner Dash: Hometown Hero
- DinerTown Detective Agency
- DinerTown Tycoon
- Dream Chronicles: The Chosen Child
- Escape Rosecliff Island
- Fairway Solitaire
- Fitness Dash
- Football Manager 10
- Galcon Fusion
- Gemini Lost
- Guns of Icarus
- Hotel Dash Suite Success
- Indiana Jones and the Fate of Atlantis
- Indiana Jones and the Last Crusade
- KrissX
- Loom
- Luxor
- Luxor 3
- Luxor: Mahjong
- Machinarium
- Mahjong Roadshow
- Max and the Magic Marker
- My Tribe
- The Nightshift Code
- Nightshift Legacy: The Jaguar's Eye
- Parking Dash
- Peggle Deluxe
- Peggle Nights
- Portal
- Professor Fizzwizzle and the Molten Mystery
- Quantz
- Sam & Max: The Devil's Playhouse
- Tales of Monkey Island Season 1
- Toki Tori
- Torchlight
- Trijinx: A Kristine Kross Mystery
- Unwell Mel
- Valarie Porter and the Scarlett Scandal
- Wandering Willows
- Wedding Dash 2: Rings Around the World
- World of Goo
- Zenerchi
- Zuma Deluxe
