Viewing Mod
True Co-op
Co-op babies begone! Play as your own own individual characters!
Created 3 months 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, or dies and spawns as a ghost with the ability resurrect in Devil or Angel rooms (on by default). Or dies and spawns as a ghost with the ability to be resurrected within sacrifice rooms.

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 89
pls make a afterbirth version
It took me ages to figure out how to install, so I might as well tell you guys. Extract it, take a look at what's inside. Take the resources folder from inside the mod zip, open that. Copy what's inside into the resources folder of the base game. Enjoy!
I have a question does this grant double item rooms?
is so cool thats i need to play with my friends
Can I get Help? the Controller only spans in a a Baby! please help.
When i use it i spawn as a baby , please help me.
Doesn't work for me..... Whenever I press start on second controller it spawns in as a baby and I can't pick anything up
When i put it in my Antibirth folder all enemies and projectiles became invincible and the game crashed, what happened?
One Of The Best Mod I Have Seen..It Makes Multiplayer Much Better
Cuando lo descargo y lo meto en Afterbirth + mods e inicio el juego, si, me aparece como mod, pero no me funciona. Alguna solución?
Ya he arreglado el error. Simplemente me he tenido que comprar el juego Rebirth con todos los DLC y ya funciona. Por favor, si podeis, podríais hacer una version para TBOI Afterbirth+ pirata?

I have already fixed the error. I just had to buy the Rebirth game with all the DLC and it works. Please, if you can, could you do a version for TBOI Afterbirth + pirate?
Thank you
Best mod.

Now imagine this with Antibirth :o
b-but this is an idea from antibirth
Everyone's Favorite Mod is here on the second greatest Isaac Workshop. download it if you can.
May 14, 2018 - 13 days ago

New text clarification in the Help section for users unable to download mods.