The Monster Inside

While it gives the brief illusion of being something else, this is effectively just a kinetic novel. You go through dialogue which only occasionally presents choice which don't branch or even elicit a different response from your interlocutor, and during three sections you do "detective" work which is just clicking on a few hotzones in the background which are so big more often than not you aren't sure what you were meant to notice until the monologue explains it. There's a twist at the end that was telegraphed both too much and too little which doesn't make all that much different in retrospect. But it all lasts so little that you really don't blame it for all of this during your short playthrough. It'd be an unremarkable short story on its own, but the atmosphere is done just well enough that you don't regret the little time you invested on it.