Question Old save

[MatthewM]

Have a raider play through going already. I have 2 questions. 1 can I add it to my old save, 2 does the system conflict with nuka world dlc raider quest line or qork with it.

 

[LaidBackNinja]

If your old save doesn't have sim settlements in it yet, yes you can add it.

And the system doesn't conflict with nuka world raiders, you can have both going at the same time, although one settlement can only be conquered by Nuka World raiders, OR sim settlement raiders, not both at the same time.