We are looking at options but haven't found a good way to make them purchaseable on itchio currently so they are only playable on Steam at this time. Even if you support us on Patreon, you will get a steam key for them. Thanks for being interested!
You'll need the game on Steam to play DLC4 + 5. Email me a ss that confirms you own the base game on here and I can send you a Steam Key. Thanks for playing! -din
