Answer:
5 or 4
Step-by-step explanation:
I know that Zelda 1 and Windwaker were inspristions, and then we have Ocarina of Time for the Korok forest, Gerudo Desert, and etc. And A Link to the Past was where Kakriko Village originated and the same theme was used for Botw as an easter egg. You may not believe me, but it's in there. But if you wanna get techinical, tons of outfits from the old games are in botw thanks to the dlcs, so...all of them actually are what botw is on.