Sounders Playground in Steilacoom, Washington offers a free indoor play space designed primarily for younger children up to kindergarten age. The facility features various play equipment including bouncy houses, kitchen toys, reading areas, and building blocks, with convenient seating for supervising adults along the walls. While the playground remains accessible to all visitors, there’s an option to rent a separate party room for special occasions, though food and drinks aren’t permitted in the main play area.