Sorry about the light yellow lines, please try your best to ignore them. Rooms may not be to scale of how I would make them. For food: Water(preferable build the shelter at or very near a well) Frozen meats Frozen vegetables Non-perishable snacks Powder mashed potatoes For living quarters: Beds(of course) Plenty of clothes, some personal storage space Basic toiletries(tooth paste, etc.) Bathrooms For entertainment: A an entertainment room with things like billiards, ping pong, video games, etc. A library with books(what else to put in a library?) A basketball court(with plenty of basketballs), 'cause I like basketball. Rooms: Dining Room Library Bedrooms Bathrooms Kitchen Basketball court Pool Living room Of course it would have plumbing, medical supplies, air supply, light, power, etc. So flood, what would YOU put in YOUR shelter?