That modders have extended the life of the last Fallout and Elder Scrolls games is not news, but no-one has previously attempted anything as ambitious as a mod with a fully fledged multiplayer mode in New Vegas. But this is exactly what project NV-MP aims to do.
One of the guys behind the project took to Reddit to spread the news about the mod, which will have a two week test that's open to the public, and everyone and anyone interested is invited to register over on their website .
The game has obviously gone through some pretty substantial changes in order to function as a multiplayer game. Among other things, the VATS system has been completely removed and you become immortal as long as you're in the menus.