You mentioned something about being able to go back and buy all of the other outfits is that only on the patreon version?
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Both patreon and itch have feature parity (the difference is release priority). The option to purchase clothes at the shop is currently limited only to Lani's lingerie, so if you already have that, there won't be any option to purchase additional clothes. I have additional clothing purchases on my work list for this release "if I have time", and I don't think I'll have time. It will probably need to wait until after this next one.