There’s a game engine designed for building massively multiplayer online games. It’s called Multiverse. It was originally a proprietary engine, but it went open source at the beginning of the year when the company that created it went out of business.
I played with it a bit back in 2010 before I left Ohio. When I moved to California in the second half of 2010 I ended up working in the same building as Multiverse, Inc. They were winding down the company when I arrived and I ended up buying one of their old computers, a monitor, and an office chair. I met the founder, Bill Turpin, who also happened to work with the database admin where I was working when they were both at Netscape.
A while later they open sourced the project. I didn’t have the spare attention cycles to dig into it for the first few months, but started tinkering with it again in April. It’s a lot of fun to play with, but needs a lot of work, especially in the ease-of-use area.
I joined the development team and have been contributing the occasional bugfix. To find out more visit this website: