For those of you who have been reading about the Portal 2 hints that were put into the original Portal, the conspiracy of Portal 2 coming out is no longer a conspiracy! Portal 2 is official and currently has a release frame of this holiday season.
What makes Portal 2 different from portal? It will include a separate 2 player co-op campaign and it is being released at full retail price.
The official announcement:
“Valve, creators of best-selling game franchises (such as Left 4 Dead, Counter-Strike and Half-Life) and leading technologies (such as Steam and Source), today announced Portal 2 for shipment this coming holiday season.
Portal 2 is the sequel to 2007’s Portal, which won 70 industry achievement awards” [via STEAM]