threejs.org/
Three.js allows the creation of GPU-accelerated 3D animations using the JavaScript language as part of a website without relying on proprietary browser plugins.
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Pretty sure everything is indie on itch.io but just in case you want something extra indie.
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Explore Sports games made with Three.js tagged Indie on itch.io · Upload your games made with Three.js to itch.io to have them show up here.
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