This tweet
from Turtle Rock community manager Jess Damerst shows how to sign up for the
Evolve Alpha if you are
interested in checking out the upcoming co-op shooter from Turtle Rock Studios.
This includes an image showing this requires a
Steam account and is limited to
North America at this time. If you are interested you should hurry, as they say
they hope to have the participation list confirmed by tomorrow. Thanks nin via
Joystiq.