You do realize it's extremely difficult to implement co-op in a deep, open world game like this right? As in it's rarely done. RPGs that are based around co-op or feature it are usually more of the dungeon crawler variety. Open world games that have co-op are usually action games like Saints Row that have much less going on mechanically. That's why they didn't do it probably. And ultimately, in working around this problem, they seem to have developed a very interesting system that hits some of the notes that co-op RPGs do while having unique mechanics unlike other games.
@The_Laughing_Man said:From what I have seen its a massive world with deep systems. Not every game needs multiplayer or co op.
Also, why does every game need to have multiplayer?
I completely agree that not every game needs it. It just seems really bizarre to set up what is essentially a co-op system, and then not actually have it. Everything else I've seen of this game looks awesome, I just find this an odd design choice.
As I say above, I see it much less of a "design choice" and more of a working around limitations.