» Fri May 27, 2011 2:07 am
Kind of depends on what is meant by "engine," I think. I mean, technically, Fallout 3 uses the Gamebryo engine, the license of which Bethesda has purchased from that company to use in designing Fallout 3 (and, off-hand, I believe Oblivion as well, though I could be wrong.) Then there's the largely proprietary (I'm assuming) design tools, which we know of as the GECK, that the designers themselves used to make the game.
I don't, myself, know (well, anything) about the business side of the deal with Obsidian has going with Bethesda, here. But it seems that they're going to be using what is essentially the GECK to make New Vegas. At a guess, I'd imagine this is so they can reuse alot of assets from Fallout 3, without having to go back to the drawing board and making a whole new game from the ground up.