@Brodehouse said:
Skyrim did not have 5 years of active development. Development is not the same as 'years from the last game'. It had 3 years after they finished with Fallout 3. The Elder Scrolls are more popular than any franchise BioWare has ever had. You might as well point to Call of Duty's 2 year cycle as the reason it sold 25 million copies last year.
XCOM (the shooter, I assume?) has also not had 5 years of active development, because Marin was making BioShock 2. By the time it comes out it will have had 3 years. Unless you're talking about the strategy game, in which case, it's had 4 years of development, much of it shared with Civilization 5.
EDIT: No, I am not not talking about the shooter. I'm talking about the much more popular TBS game. I'll be surprised if the shooter doesn't get scrapped at this point.
http://www.rockpapershotgun.com/2012/02/01/xcom-enemy-unknown-preview/
RPS: (laughs) How long have you been doing it for?
Jake Solomon: This project, we’ve been doing it for three and a half years at this point. I mean, some guys, some of the early art staff have been on it for four years at this point, so we’ve been in development for a really long time.
That is from an interview 8 months ago, or last February 1st. So technically anywhere from 4 years to 4.75 years.
I can find sources on the other ones as well, if you want to get really into it, but I think we both know that is a waste of our time.