So, this isn't actually much of a game yet, but it's got some of the elements I'm working on that could go into Java versions of a number of games. It's really just up here for my own experimentation right now, but you can use it too.
The object is to get as much gold as you can. There are 5 creatures trying to get gold. They all move around randomly. You can control any of the creatures. To control a creature, click on it (they don't hold still for long, so be quick). Then, use the numeric keypad or arrow keys to move the creature around. If one creature bumps into another creature, it causes that other creature to teleport. You get one point for that, and ten points for picking up a sack of gold. Press new game to start again. That's it for now...