The updated version is called GAMMA BROS 1.5, and can be pre-ordered at GammaBros.com. The pre-order campaign lasts 4 weeks and features reward tiers only available until release on Early Access.
"...this simple, Robotron-esque space shooter contains one of the most simple, subtle, and clever methods of developing player/character empathy I've ever witnessed."
-Anthony Burch, Destructoid Review
Finalist, 2007 IGF Awards
Created By: PIXELJAM
Pre-Orders Available: Now
Early Access Release Date: May 26
Website (Pre-orders, Main Info): http://www.gammabros.com
Website (Steam): http://store.steampowered.com/app/436470/
Price Point: $5