In GBJam developers are tasked to create GameBoy themed games. You'll find games on this page for any of the GBJams that have happened.
Pretty sure everything is indie on itch.io but just in case you want something extra indie.
Explore games for Linux with Keyboard support tagged GBJam and Indie on itch.io · Upload your games for Linux with Keyboard support to itch.io to have them show up here.
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