How do I make character mods :: The Binding of Isaac: Rebirth General Discussions

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Bottleman

Sep 24, 2016 @ 6:29am

How do I make character mods

Can someone plz help on how I can achieve a character mod because it is something that I am really interested in. Help on this subject would be awesome. Thanks :)

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Showing 1-3 of 3 comments

Nazemec

Sep 24, 2016 @ 7:37am

First, you must know we can't create new characters. We can only edit existing ones (for now, maybe Afterbirth+ modding tools will allow that).

Second, you'll have to choose if it will be a Rebirth mod or a Afterbirth mod. It's important, since Rebirth mods will crash Afterbirth and Afterbirth mods will crash Rebirth.
(If the game doesn't crash, you can expect corrupted graphics.)

Then, follow the first part of this video to get Rick's unpacker and understand how to use it: https://www.youtube.com/watch?v=ubMz84mUfuo

Now, here are the files you'll probably want to edit:
- players.xml
Name of the character when you fight a miniboss, starting items, health, which pickups he has...

- gfx/ui/charactermenu.png
What the character looks like in the menu, along with its menu name and his starting items.

- gfx/ui/boss/[corresponding files]
Name of the character when fighting a boss, and what it looks like in the VS screen.

- gfx/characters/costumes/[corresponding files]
What the character will actually look like in-game.

There are probably some other files to edit, but here are the main ones. You can also edit the animation files if you want, but it gets quite technical to do.

If you're creating a Rebirth mod, files are scattered in the .a archives.

If you're creating a Afterbirth mod, you'll see a "afterbirth.a" archive. Most of the files are here, "missing ones" are in the Rebirth archives (every other .a). Do not use a Rebirth gfx file (or any file) instead of its Afterbirth version, or you'll end up with weird things (or crashes).