Modding (Rebirth & Afterbirth)

This is not officially supported or endorsed by Nicalis, Inc. and other developers.

Modding Rebirth & Afterbirth is limited to editing and replacing existing assets unless you hack the .exe yourself.

Installing Mods[ | ]

Mods made for Rebirth & Afterbirth must be installed manually into the game's resources folder.

OS	Path
Windows	`Steam/steamapps/common/The Binding of Isaac Rebirth/resources`
Mac	Library/Application Support/Steam/steamapps/common/The Binding of Isaac Rebirth/The Binding of Isaac Rebirth.app/Contents/Resources/resources

To properly install mods for this version of the game, you must place what is inside of the mod's resource folder into the resources folder at the file path above.

Limitations[ | ]

Modding for this version of the game is limited to replacing existing files. Custom code (such as LUA code) cannot be executed, making most custom logic impossible. However, some mods have made attempts to work around this limitation by abusing certain default game logic - such as adding additional events to a monster's animation file. This could result in, for example, an enemy firing two projectiles instead of one.

Resources[ | ]

Listed below are resources that can assist you in creating mods for this version of the game.

Modding_Tools

A list of tools that can help in mod creation.

Modding Tutorials

Links to external tutorials about modding.

XML Modding

Information about modding XML files.

Mod Hosts[ | ]

The Modding of Isaac

A service by the community to host mods created primarily for Rebirth and Afterbirth.

The Binding of Isaac Rebirth NexusMods

A section of NexusMods that is home to some Isaac mods. Not very active.

The Binding of Isaac: Antibirth (Official Site)

A website that features the main source of downloads for the Binding of Isaac: Antibirth mod (many contents of which were implemented into The Binding of Isaac: Repentance but some of which are only available in the unofficial mod). This mod only works if all DLCs for the Binding of Isaac: Rebirth are disabled.