>>535519658
>crossover
There's very little crossover between RC and this game. There's some collectibles that reference GFL2 though (and GFL1). You can definitely play RC without knowing anything about this game.
>characters overlap?
None. The only doll from the first game that reappears in RC is IDW
>where does each game take place compared to eachother?
Reverse Collapse sets about 20 years later