Valve's big
Portal 2 ARG, also known as the Potato Sack, continues to expand. Today more updates for some of the indie games involved in the sale-ARG went live today. One of them was
The Ball, the puzzle-action game that has some comparisons to the Portal series.
The new update added a new level to
The Ball, Aperture, that adds about an hour of extra gameplay. More than that, the new level has you combating Portal turrets. Another
Portal-themed level has been added to the zombie shooter
Killing Floor. It's by far the most blatant cross over between the
Portal series and the Potato Sack indie games yet.
By the way all of those games are still on sale. We wonder why.
Update:
Audiosurf's update today included some Portal themed levels and artwork. Yes,
Audiosurf. You can check out an image from the game after the jump: