Will the main game be sold on Itch.io in the future?. I would also like to request a native Linux binary as well, perhaps in the Appimage format for ease-of-use and cross distribution compatibility.
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Currently only builds for niche systems or experimental formats are hosted on itch.io, with the mainstream PC builds on Steam. I have been wanting to add a native Linux binary for a while, but have not yet found a way of doing so without players potentially losing their save states on the Steam Deck, since Proton uses different (translated) paths for storing game data.