@force_echo: Interplay only published Fallout 2, Black Isle developed it, read the OP. Black Isle was formed from the majority of the original Fallout dev team and Obsidian was formed from Black Isle studios (when it split into InXile and Obsidian).
@hecktate: Have you ever played the original Planescape: Torment? I've had it a while but never got the chance to play it, I've heard it's meant to be one of the greatest stories in gaming and changed how storytelling should be told in games (so I've pretty high hopes for it, then).
See how pre-columbian central american society worked, same for south and north american, if possible. Very little is known about either as the Europeans destroyed a lot of records to assimilate the populace.
@eisenfauste: No, Bethesda make the numbered titles (the next is 4) and I think Obsidian is interested in making another engine spin-off afterwards. Obsidian is currently making Pillars of Eternity at the moment, one of the biggest crowdfunded game ever, you should check it out, it's a modernisation of classic RPGs and includes elements that are typically streamlined by big publishers for mass appeal.
@eisenfauste: Backed out of what? The original design for Fallout 3 (Van Buren)? I'm confused by what you mean in that sentence.
Yeah, it's a good continuation of the first two and used a lot of aspects that were originally meant to be in the original Fallout 3 (pre-Bethesda), such as Caesar's Legion, Burned Man, NCR-Brotherhood war etc. I think the plan is that Bethesda concentrate on the East Coast, while Obsidian concentrate on the West.