There’s a free fan made Battlestar Galactica game available…

“Beyond the Red Line is a stand-alone total conversion for the award-winning Freespace 2 released by Volition and Interplay for the PC. It is based on the popular new tv-show Battlestar Galactica. No, not the one from the 70s.”

It’s free and available for Windows, OS X and Linux.

Source: http://www.game-warden.com/bsg/