15 Indoor Fort-Building Kits Your Kids Will Love

Crazy Forts! 69 Piece Buildable Indoor/Outdoor Play Fort Playset ($36, originally $70)

The Crazy Forts! Purple Fort-Building Kit includes 44 durable rods and 25 toggles, which can be put together to create a house, a tunnel, an igloo, a castle, or a rocket ship. The structures are strong enough to support a sheet or blanket on top, and the kit also includes instructions for easy construction.