I don't get why people are saying that Prey was too short for them. I actually felt like it really dragged towards the end. It was just getting totally repetitive and there was nothing new anymore. I definitely couldn't have taken much more of the same. I'd say it had just about the exact right length but then I got the game at a budget price of under $30 so maybe that's why I didn't feel betrayed by Prey's length. I wouldn't want any sequel to be much longer unless it would offer something/anything genuinely new and different each level. But if it's anything like the 1st Prey then ~10 hours or even less than that is just fine.