Idea
- MC is reincarnated or originally in the world of anime/movies or games, get a system that gives him the ability to go to horror worlds, like SCP, backrooms, silent hill, etc.
- Ideal route for the system Creation, one, MC could either gain the power of those he defeated/conquered/killed or he could gain that horror as a subordinate, something that will follow for his every wishes(something that many "Hear me out" people will like.)
- Two, he will simply be able to go in and out of whatever world(restrictions is either, one he couldn't go to another world before conquering that world or two he could go to another world but if he didn't conquered that world yet, it will be reset meaning every progress he did there is lost.)
...
This is Inspired by Marvel: Double through the fairytales world.
It is a fanfiction and a translation but it is interesting and so that got me wondering about other things too.