Hi,
Poing 4 and Poing 5, a PD arkanoid clone but seriously awesome, just so cool. Keeps me playing for quite a while.
Colonization which i feel deserves a multiplayer version which would make it most excellent.
Kumquat - a funky shareware space enclosing game
Collision Course Alpha - a freeware game flying a ship avoiding stuff. More fun fun fun!
And a little list
Zeewolf 1&2
Populous 1&2
K240
Lotus 2
Super Skidmarks
Worms DC (specially on self designed levels)
Dogfight 1.2 (Shareware) played for hours with my bro