I have two things to present here, namely a game engine and a collection of games.
I've been working on my own game engine for the purpose of writing 2D "classic" games as quickly and easily as possible. I started off with 3 example games--that was almost 2 years ago--and by now I have 13. I am particularly interested in making interesting modifications to classics, or creating original game concepts. The games are all "casual" games. The game engine itself is fully documented so it should be quite useable for other game programmers. It's meant to be a "high level" engine, delegating as much of the "boring but time consuming" (for me at least) part of game programming to the engine, so one can concentrate on the game concept.
You can find the JGame project homepage here:http://www.13thmonkey.org/~boris/jgame/
The games can be run as applets here:http://www.13thmonkey.org/~boris/jgame/games.html
Boris van Schooten