The Binding of Isaac: Rebirth

The Binding of Isaac: Rebirth

2,982 ratings
True Co-op
File Size
2.167 MB
Dec 13, 2017 @ 3:29pm
May 3 @ 7:25am
12 Change Notes ( view )
You need DLC to use this item.

Subscribe to download
True Co-op


Co-op babies begone! Now you and your friends can play as your own individual characters as True Co-op comes to Afterbirth+!

With up to four players, select your own individual characters, and have fun! You can pick up your own items, trinkets, cards, and pills, instead of having to share with player one!

Configure a number of different factors of gameplay, including enemy HP scaling per-character, player ghosts, and more!

A fun new challenge is available! Play with multiple characters at once-- at the same time! Painful, chaotic fun! I mean...long live the hive-mind!


Meowlala- Lead Dev, Programming
S-body- Art, Animation
OrigamiDragon- Art, Animation
Electoon- Art / Animation assistance, trailer, screenshots, testing
Deadskull- Testing
Ballisticannon- Testing
Chrome- Testing
Bustin a Bloch- Testing
EnderSlique- Testing

Special thanks to the Binding of Isaac discord community for support and testing, and to other members of Team Alpha who assisted in the discovery of game functionality that made this possible.

Q / A

I remember in Antibirth, the game was bugged so you couldn’t resume with a co-op character! Does this mod done by a completely different development group somehow have the same issue?
Nope. So long as the mod is enabled, all of the data for the additional co-op character will be saved-- just be sure to join in the proper order. If you don’t, just exit out and try again or swap controllers.

My friend is a ghost!! What do I do?
Find a devil or angel room-- you can resurrect them from there.

Mod characters!! I want mod characters!!
We offer the tools needed for proper mod character implementation, but it’ll have to be done on the side of character creators-- if you want your favorite modded character compatible, ask the creator if they can do compatibility.

This is confusing! Who is who?
If you’d like to see who’s who, hold down [TAB] to give off a colored tint on each player. If you want this tint on all the time, plus specially colored text indicators, there is an option to change it in the config.

Screw being a ghost! When my partner dies, I want everyone to feel it!
No problem-- we have a few other options for death in the config: the run ends when someone dies, a player dies and respawns as a ghost unable to be resurrected, dies and spawns as a ghost with the ability to resurrect in sacrifice rooms, or dies and spawns as a ghost with the ability to ressurect in devil or angel rooms (on by default).

You keep talking about this config, what’s that all about?
We actually made a challenge that allows you to customize how True Co-Op works, allowing you to change such options as the HUD, how players are resurrected, and more. Press R to exit the challenge.

Something something ONLINE CO-OP
No. Online Co-op is not feasible with a mod using solely the Afterbirth+ lua API.

Your mod breaks my mod! How can I fix this?
Directly below the Config table in main.lua is a blob of useful information for ensuring compatibility with True Co-Op! Feel free to ask questions to DeadInfinity on the Binding of Isaac Discord if you need clarification.
Popular Discussions View All (82)
Sep 23 @ 7:53am
PINNED: Known Issues
Jul 12 @ 8:39am
Как сделать чтобы в сокровищнице у каждого игрока был свой артефакт?
Jun 8 @ 11:30am
Playing online with remote play.
< >
Lil_Ricky Sep 27 @ 10:04pm 
How do you even start the mod
Adamo2499 Sep 15 @ 1:39pm 
Can I play with it while I have 2 keyboards? Or do I need a gamepad controller? Because I want to play (I will test it with AIsaac) and I'm not sure
#008080 Sep 10 @ 6:26am 
@Aretha Cairn

That's vanilla isaac functionality, if you've not beaten mom's heart you don't get achievements/unlocks with mods enabled.
Aretha Cairn Sep 1 @ 3:51am 
Is it an aspect of your mod or vanilla Isaac that disables unlocks for co-op?
Podaj Qbek Aug 25 @ 1:33pm 
please make version for only rebirth too
ShockinglySane Aug 22 @ 10:09pm 
NVM I just implemented my own scaling. The equation used seems a bit off though.
ShockinglySane Aug 22 @ 9:10pm 
Okay am I just an idiot? Everything about this mod has always worked fine aside from the HEALTH SCALING. It has NEVER seemed to work, even turned all the way up enemies die just as fast.
alankao Aug 16 @ 4:23pm 
@cheese salt turn off the mod that adds in ai
Š©℗ Pudsima Aug 12 @ 8:11am 
my friend is a AI, how do I fix this?
Mario Aug 9 @ 2:02am