We held a little gamedev contest between christmas and sylvester, and I handed an entry in, too. The goal was to create a little game using graphics from Reiners Tilesets only.

This is a screenshot of my entry. The programming language was unspecified, and so I decided to write a little MMORPG (Minimal Online Roleplaying Game) in Java. I had no time to test it in the Internet and found out that it’s nearly unplayable online, later, but it’s quite nice for LAN playing. The goal is to collect all gems on a map in a limited time, and to beat all collected gems out of your opponents with your sword. The entry and the other contributions, all with full source code, are available for download on the #gamedev.ger contest page.
Sidenote: I recognized that there seems to be a difference in the behaviour of the KeyboardActionListener under Windows and Linux, but I won’t investigate this issue further. If you have strange effects while trying to walk around with your character, you most likely just experience this bug.