Did I just make a mistake? Being excited to get Fallout 4 installed on my new Xbox One, I just realized when I woke up this morning I might have made a mistake. I gave my son my old Xbox One. I pre-ordered Fallout 4 on my Xbox One and not his. So does this mean when I download Fallout 4 on his Xbox One he can't play Fallout 4 on his account now since the first initial install was on my new Xbox One?

I know when we had our 360s I would install Oblivion, Skyrim, Fallout 3 and New Vegas on his 360 first since any account on that 360 can play it and then install it on my 360 since Xbox Live would see I am on my account and then can play it. I believe the same is for Xbox One.

I know I can install Fallout 4 on my account again and he can play on my account then, but if Fallout 4 saves is like the previous ones and Skyrim, we can't name our saves and I don't want him accidently saving over my games since the games are saved to cloud.

So is there anything I can do so I don't have to buy another copy for Fallout 4 for him to play on his Xbox One?

From what I understand:

Any GamerTag can use the content on the console where the content was purchased
Your GamerTag can use the content on any console, as long as that console is connected to Xbox LIVE.

So I think you'll have to buy another copy of Fallout 4 for your son.

Yeah that is what I was afraid of Bonalste.

Now this is weird. I go to my sons Xbox One, and Fallout 4 is already installed on there. I know I installed it on my Xbox One, but how did it install on the other xbox? I am sure my son didn't do anything to it, but he is not here so when he gets home, I will make sure he didn't install it to make sure.

I just really hope we can name our saves so we don't get them mixed up. I guess the only other alternative for him to play Fallout is on my new Xbox and he is on his account and when I get off work, he has to go on his own Xbox then.