www.godotengine.org/
An open-source 3D and 2D game engine and development environment.
Pretty sure everything is indie on itch.io but just in case you want something extra indie.
Suggest updated description
Games which have short playtimes and can usually be completed in one sitting.
Explore games made with Godot tagged Indie and Short on itch.io · Upload your games made with Godot to itch.io to have them show up here.
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