You may remember I made a game called Unelite a while ago. That one kind of died because I forgot to make new content.
Well, I decided to give the whole game-making thing another go:
http://scigame.freelinuxhost.com
Text-based, written in PHP with MySQL as the database.
This one's PVP based, which takes quite a bit of the work away from me. Basically, you make a character, tweak your inventions - think weapons and armour - and then fight other players. Beating other players gets you reputation to buy enhancements to make your inventions even better.
To prevent people "reputation-farming" constantly (mainly through macros) there's a one-hour recharge between each fight you start. However, while recharging, you can still modify your inventions and defend yourself against attackers.
Go have a play around, the more the merrier.