I can't seem to be able to create a proper indoor area. I'm trying to make something like the room in the bottom right of this image https://img.itch.zone/aW1hZ2UvMzYwMzU5LzE4MDE1ODYucG5n/original/YoWRDD.png.
Am I an idiot/missing some tiles? They don't seem to connect to be able to make a room like that.