I've been watching this website for over a year but didn't have any reason to post. I found this awesome puzzle game no one knows about called Gate. You have to program robots using computer logic gates to complete each level. Gate also has a level editor and you can post your levels to the community forums. It was inspired by an old Apple II game called Robot Odyssey. Robot Odyssey has a java port/remake of called DroidQuest.
Gate can be downloaded here (for both windows and mac):
http://www.quinndunki.com/gate
Robot Odyssey and java port, DroidQuest, can be downloaded here:
http://www.droidquest.com/
I would also like to thank Whiterabbit and Wizzard for posting all those great games. And I have decided to offer to join the team if your interested. I know about lots of games but mostly contest entries and student games.