Hi
If some of you remember BlackNova Traders from years ago, its a open source browser based rpg.
Basically you have a space ship which you use to trade resources to gain credits and upgrade your ship further. You can also build up planets to produce more resources, credits and other things. Then you can form alliances and attack each other (and the 150 npc's in game).
Its totally free and the channel is #BlackNova and the game is currently running on
http://www.gynw.org/duncan/bnt/ (temporary url).
- Chef (BlackNova Admin)