Alien Abduction was an excellent and well-priced indy Defender-clone. It was beautiful, fast-paced, tactical and addictive. It featured 30 levels, 3 gameplay modes, tons unlockable stuff and 2-player action. Even the illustrious team of PC Zone seemed to enjoy the little shmup. Sadly though, Alien Abduction the indy commercial game is no more. Not at all. It's now been released as freeware and is available (both for PC and Mac) from Pumpkin Games.
Related Tags: Defender, Alien Abduction, Free game, Free games, PC, Mac, Freeware, Shmup, Retro