Hey, awesome game! Could you add its license and/or the `open-source` tag, so it becomes discoverable when looking for free culture games? (It's in the `Metadata` section when editing the page)
It's kind of a hidden feature of itch, but you can actually filter games by their code or assets license! E.g. https://itch.io/games/assets-cc0 or https://itch.io/games/code-mit