if you're ever worried about a jam idea you can run it past a co-host. generally though as long as a game handles heavy topics sensitively and is properly warned (nsfw, violence, heavy themes etc) you should be ok! also, there's a number of ways to make good maps--depends on if you're making a 2D or 3D game i suppose but you can always look up level or map design tips or tutorials. i'd say if it's 2D it might be a good idea to have an exit "make sense"--ie a location that's central or where the rest of the room is logically progressing toward (a hallway, for example). there's ways to lead a player's eye to locations using design principles. i'm excited to see how you'll solve it!