Wed Jul 10 17:35:41 2013 from store.steampowered.com

Players Being Added In Waves to Maximize Game Performance Valve, creators of best selling game franchises (Counter-Strike, Half-Life, Left 4 Dead, Portal, and Team Fortress) and leading technologies (Source, Steam), today announced the public launch of the highly-anticipated Dota 2. [Read More..]

The game looks great.  I can't wait to give it a try.