The Binding of Isaac Four Souls Fatty Expansion Pack

polosm03 · August 23, 2026, 12:15pm

I’ve made a custom expansion for The Binding of Isaac Four Souls, you can go check it out if you’re interested.

I do not claim ownership of the art used in this upload, all credits for the art used go to
ShweetMagnet,

ChanMattet,

and NullVainill619.

polosm03 · August 24, 2026, 5:24am

Added a new item based on a 4-chan parody comic.

Please don’t read too deep into this, I just thought it’d be funny.

polosm03 · August 24, 2026, 5:57am

Buffed Boney Gulieta to hopefully better sell her spaciousness.

polosm03 · August 25, 2026, 6:15am

Also check out Munch-Kin, a custom fatfur Race expansion I made for Munchkin!
https://steamcommunity.com/sharedfiles/filedetails/?id=3783316153

(yeah, sorry for blatant cross-promotion, but 2 unique views total is crazy)

polosm03 · August 29, 2026, 8:47am

Removed all depictions of Isaac because he’s underage.

On the flip side, the new illustration for 4-chan Parody Comic reflects the item’s effect better.

polosm03 · August 31, 2026, 4:42pm

Another update! Updated wording on Gulieta cards to better fit with the original game, and also reworked Boney Gulieta again

polosm03 · September 1, 2026, 12:57pm

Massive graphics overhaul update, with cards remade in the Print Four Souls card maker