In Granny, you play as a kid who's trying to get out of their grandma's house without getting caught. You'll need to sneak around, hide from granny, and find keys to unlock doors. It's not as easy as it sounds, though - granny is pretty aggressive and will chase you down if she sees you.
The game takes place in a huge house with tons of rooms to explore. You'll need to search for items like the hammer, which is crucial for escaping. But, be warned: the hammer can spawn in different locations each time you play, so you'll need to stay on your toes.