Star Opus: Episode I “Pathway to the Pollux”
Dubbed as the "real mother of all retro games," Star Opus I takes retro shooting to a whole new level. The game induces some hardcore Asteroids style of gameplay along with some lovely, lovely tunes to go along with it.
Star Opus I is essentially a one-man project. The first episode is currently released as a freeware and so will Episode II, which is currently under construction. However, it seems to be set for a commercial release later on. Let's just hope this doesn't come soon enough.
For the meantime, grab this download from their website or simply hit the Download Game link. It's perfect if you just want to get away for awhile, head to space and shoot some asteroids.