Viewing Mod
True Co-op
Co-op babies begone! Play as your own own individual characters!
Created 3 years ago

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 re-spawns 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 resurrect 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#5189 (meowlala) on Discord if you need clarification.

True Co-op Steam link!

True Co-op Youtube Trailer link!


x 592

- Forgotten Update Patch:

- Forgotten player one ghost / revival support.

- Minor fixes relating to bone hearts.

- Custom Co-op Boss Splash & Booster 5 basic support. The new character unfortunately cannot work with co-op as player 2-4, but this should help with many of the crashing issues.

Me and my brother likes this mod.
how can i fix that the char menu is not showing up?

It won't show up in my mod's list, is there any way i can fix that?
Super-Dooper-Ultimate Hot. I mean Mod
can i have stats shown for both players?
how to turn on the 2 character because when I connect the controller there is only a small child

1. does it work for consoles
2. is it online
I'm havin a few issues downloading the mod. Every time I try it ends up sayin that there is an unknown error type two.
Wow! Thanks for the hard work put into this for the Modder Community, this is really helpful if i wanna play with my friend!
This mod isn't working for me. I may have done something wrong. All I did was download isaac (afterbirth+) and install the mod into the mod folder. Nothing happens when I use a second controller other than I get the player two baby.
I have the same issue too, i found the folder to insert it into and activated it, and i still come in as a co-op baby
All I did that worked is, go to Isaac, open it up, and press shift+tab. Go to the workshop for Isaac and you've got all the mods there as well.
So this version wont work from this?
is this mod workink on the binding of isaac rebirth?
you wrote "now for afterbirth" in the desc. Does that mean there's one for rebirth?
I gave you a heart just to be the 420th. You're welcome.
this is gonna be useful until repentance comes out
it still makes me a baby even if i have afterbirth plus and the mod what do i do
one word HOLYFRICK it's beautiful
hey is there a link for this in 7 zip because I do not have winrar and i really want to play this but as I said, I do not have winrar
COOP in rebirth would be best. I sort of like afterbirth but own it and don't feel ready to buy it.. just wanna play with a friend...
January 16, 2020 - 10 months ago

Maintenance complete! We have moved to a new web server! Speed and stability should be improved. If you notice any issues, please mention them in our Discord server.