At any rate, I don't think buying Obsidian would be a smart move for Zenimax. Obsidian has only ever developed a single new IP, Alpha Protocol, which while a good RPG was buggy as hell. The rest of their games come from the IPs of other developers. I don't know if it would be wise for Zenimax to purchase a developer with such a small profile of IPs. Fallout: New Vegas may have sold well but there's no way they're going to try to make another Fallout game until they have a "new" engine to use from Fallout 4, if they do at all. Obsidian just barely squeezed by with using this engine and left behind tons of bugs in the process.