Pretty sure everything is indie on itch.io but just in case you want something extra indie.
A game in which the player is not constrained to achieving specific goals and has a large degree of freedom to explore, interact with, or modify the game environment
Explore games with assets under All rights reserved not in game jams tagged Indie and Sandbox on itch.io · Upload your games with assets under All rights reserved not in game jams to itch.io to have them show up here.
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