I'm currently at work creating a game based on the Mass Effect universe, using the Legend of the Green Dragon source code.
For those of you who don't have the time to browse through and find out what that is, LotGD is a browser based RPG, that uses a text based interface. It's a lot like what you might have seen before in the popular Mafia Wars style games, and earlier traditional online MUD's. I was introduced to this particular code through a game called HogwartsLive, based off the original LotGD code that is, you guessed it, Harry Potter themed.
I'll wait for the laughs to subside.
Anyway, I decided to download the source, set up a test server and get to work on a game of my own. I needed a theme and Mass Effect seemed like a perfect choice, I've been using the Mass Effect Wiki for reference information.
If you'd be interested in lending a hand with the game, I could use some help from someone who is experienced with writing PHP (since I have no experience with it) or even just eager people who wouldn't mind helping with the mundane task of creating weapons, armor, items, etc. If by some miracle I ever do get the game up and running with a beta, I'll also need testers, but that is a long ways away. I'm still uncertain whether or not this could be a serious project, or just something I start, work on frantically for a week or so, then get bored and drop.
If you'd like to hear more about the game and my ideas for it, or lend a hand, let me know, and I'll send you my contact information.