Items you collect can be constructed from other items or by collecting resources in game. Typically you'll use various recipes combined with the ingredients you find to make new items.
Pretty sure everything is indie on itch.io but just in case you want something extra indie.
Explore games that last about an hour with one button tagged Crafting and Indie on itch.io · Sell your games that last about an hour with one button on itch.io to have them show up here.
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