The MMO style playground game Roblox has had a fan made pony world in the works for quite a while now. The description on this section appears to primarily focus on roleplaying, with the ability to make your own pony via an in-game pony customizer as well as explore the various locations around ponyville. They even have a dubstep trailer like all those major game companies are doing these days! Check it out below the break, or check their community out here.
