Hey, im making an horror game similar to granny, (you have to puzzle your way out while evading a monster that hears and sees you). Of course the map is different (its a city) the monster is different, etc. Also it will be multiplayer, I mean you will be able to play it with one other player, You will be able to revive your partner if the monster gets him/her, but if both die, its game over, also you can play it alone of course.

I'm looking for cool ideas about a game like this. What are your thoughts guys? What would you like in a game like this?

(Also I have made several games for mobiles, including multiplayer, for me its easy to make it, dont worry about that. I'm not an amateur.)