Fate/Stay Night is based off a Visual Novel. Many dating sims are done in the VN style, but not all VNs are dating sims. There are also quite a few VNs, like F/SN, that are just stories with multiple arcs/path and have no game stuff in them what so ever.aren't a lot of animes based on dating sims? like fate stay night, or is that more of a pc game?
Then there's stuff that's a lot more gamey like Zero Escape: Virtue's Last Reward (Vita game). It has a ton of different branching paths and choices and is a huge mystery story where you solve puzzle rooms in between certain parts of it. There's a bunch of stuff you can only do after having played through certain paths, etc. Took me about 27 hours to beat it and see everything.