Valve, creators of best-selling game franchises (such as Counter-Strike, Half-Life, Left 4 Dead, Portal, and Team Fortress) and leading technologies (such as Steam and Source), today announced Dota 2, a massive sequel for one of the most played games in the world.

Coming to the PC & Mac in 2011, Dota 2 promises to take the unique blend of online RTS and RPG action that has made Dota popular with tens of millions of gamers and expand upon it in every way.