That's true enough. If I was less shit, I'd make a version of a pocket dimension CYOA where you're made immortal and trapped in a small pocket dimension ala the Caged Bird option in this here CYOA.
Then you have points you can spend either on making your life in the pocket dimension better, but not being able to invite guests over or leave as much. Or having more and more worlds you could visit, and more time to spend outside before you're sucked back home, but a shittier home.
Maybe there could be like, ten worlds near your pocket dimension and each costs a different amount depending on how shit they are, one can be earth.
Then you could have downsides, like a ritual can be used to summon you to a world and bind you for certain tasks, or if people spend more than X amount of time in your pocket dimension they're trapped there, or you have to trap so many people a year to fuel your continued comfort.
Alas, I'm a mentally handicapped tard-mongler and can't do shit.