It depends on the type of game.
For example, Resident Evil 6. Its a very long game that reuses levels and spans multiple sides of what is actually a short game. It would have benefitted from focus and a shorter campaign.
A game like Skyrim, is supposed to be an engrossing RPG, so i'm expecting alot of content as the games have systems that lend themselves to a high level of progression, exploration and customization.
A spectacle shooter like Uncharted, cant afford to linger too long. I would say less than 10 hours because repetition settles in quickly after killing wave upon wave of enemies. The only thing that changes is the background.
An action sandbox like GTA or AC has a ton of boring and repetative collect a tons wich increase the length but also the boredom of the games.
So, i would say, that ideal length depends on quality of the game. Developers shouldnt be afraid to make short but high quality games, because not only are they enjoyable, but leave the customer wanting for more.
But of course, this has to be taken with care because publishers will just distort that into:" lets launch incomplete games for full price", and that isnt ok at all. It should still feel like a complete experience, and it should lead into the next title. The only problem i see with the Order is that they said they arent making a sequal and that it ends on a cliffhanger. I would have to be insane to jump into it only to be disappointed even if i enjoy it.







