Mary's Arcade is a fnaf style horror game that focuses on planning your moves ahead, rather than "pure rng". . .there's really not much info I can give storywise, since the game doesn't really have any "lore", per say.

However, you can check the game out on Game Jolt if your interested. I highly recommend looking at it, even just a little, cause 3 years later and it's still super underrated.

Mary's Arcade:
https://gamejolt.com/games/MarysArcade/545346

Mary's Arcade: Service Pack (still in development):
https://gamejolt.com/games/MarysArcadeSP/829400

Mary's Arcade 2 (still in development):
https://gamejolt.com/games/MaryMaryQuiteContrary/671859

(sorry for this wiki entry being ass lol)