waron on 22 September 2009
it's hard to say how long ODST campaign really is - it's obvious that reviewers made speedrun going from one flashback to another, but it's a sandbox game. if you play normally i think it will give you atleast 12-14 hours to finish it - especially if you want to find all chapters from side story and simply explore the city.
for me it all depends on the game, replay value and experience.
i don't mind 20hours rpgs/jrpgs if they are intense and don't feel like rushed, but i also like 100+hour games if they can still be interesting.
for action games i would say that 12-14 hours for a full game that is like Bioshock(singleplayer experience) is a must. if it's more of a multiplayer game then 6-8 hour of singleplayer campaign is okay to me.
