Are the new versions of the game going to be made public on Itch.io or are they being exclusive on Patreon?
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This is the main public demo. Further builds will be exclusive to Patreon/SubscribeStar until development is completed. Once development is completed, the full game will be released for sale on Steam/Itch.io.
It's possible that the there will be an update to the free demo as we get closer to the end of development, but we'll see.