Indie Retro News is giving away 2 keys today, one for Sanctum(Steam) and the other for Joint Task Force(Steam). All you have to do is pick one or the other, and send me a nice choice message through Twitter and I'll send you the key. There is only 2 keys, so only 2 winners, first come first won and all that ;).
UPDATE - Sanctum key has GONE!
UPDATE - Joint Task Force(Steam) has GONE!