Ya missed a big one: WarBlade is the PC version of the classic Amiga game Deluxe Galaga, done by the man himself, Edgar Vigdal. Trust me, it's everything you loved about Deluxe Galaga and more, even though it's still in beta release. Still, this is as polished a game as you're gonna find in the PC world and has made my own platform transition a whole lot less traumatic.
Check it out!
