F.S.A. (Flying Saucers Attack)  
It plays really well, but as Nowiz says, it doesn't really become addictive. It's a bit like missile command, and in that game there were changes in pace (lots of missiles, then a few, then ..) which worked well.

LightSpeed  
Any chance of the source so we can compile for Linux?!

RotoCube  
A neat and simple puzzle, with some good graphics touches. It's good as it is, I don't think it would benefit by having lots of flashy features.

Sauerkraut  
Rather crude in every sense of the word - still it made me laugh at several points. The engine works well and it's impressive for 48 hours work.

Sword of Fargoal remake  
This is well polished and fun to play! However, when descending a level the whole screen went red and some areas were revealed 'at random' is this normal?