I spent the last few years making an MMORPG called Aberoth.
It is available to play at http://www.aberoth.com
You can see additional screenshots and a video at http://www.aberoth.com/media.html
Both the client and server are written entirely in Java. The server runs on a headless Linux box, and the client is a Java applet using Canvas and Java sound.
There are currently 7 skills, well over 100 unique items, and a bunch of monsters, quests, and zones. Players are given a lot of freedom, and PvP is allowed (but the community is very friendly).
The graphics are pixely, but each pixel is actually a voxel with depth in the game world. Therefore, you can stack and climb items and get on top of structures. Items also never disappear from the server (except in shops), so permanent structures or art can be made. I recently added per voxel lighting, which can be seen in some areas.
The game has sound, but by default sound is disabled. I use a signed applet to copy sounds files to the local PC, and did not want the user to have to accept a signed applet before even seeing the game. To enable sound, check the "enable sound" check box on the log in screen. The "Log In" link is below the main window. The stand alone client has sound enabled by default.
I would love for you to came play and would appreciate any feedback you have. I would also like to be rated and considered for the Featured Games board.