The Binding of Isaac: Rebirth

The Binding of Isaac: Rebirth

2,063 ratings
True Co-op
File Size
2.167 MB
Dec 13, 2017 @ 3:29pm
Apr 30 @ 6:33pm
10 Change Notes ( view )
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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 (61)
Sep 7 @ 10:01pm
PINNED: Known Issues
Jul 31 @ 4:37am
Failure to understand.
Jul 14 @ 11:32am
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☢ Nato Potato ☢ Sep 13 @ 4:40am 
forgotten can work with the soul/forgotten co-op mod
Lynnux6002 Sep 11 @ 7:01am 
forgotten doesn 't working:steam sad:
Dr.Bonk Sep 10 @ 3:26pm 
make a rebirth version on modding of isaac
nie dziala kurwo
Chamwow Sep 4 @ 4:35pm 
Playing this with my friends has gotten them really into it.
♣Airmail♣ Sep 4 @ 3:35pm 
I haven't seem this problem in the comments, but when I use certain modded characters, people cant seem to join my game. Would the modded characters be the problem?
←LSP→ Fiendzy Sep 2 @ 7:13pm 
So uh, not sure if anyone else has this issue, but when theres alot going on screen via soymilk crickets body and parasite (or any large amount of tears being spawned on screen) the game slows to a crawl, disabling the mod fixes it? is it just a me issue or is anyone else getting this?
brandielou43 Aug 29 @ 5:46pm 
how do I activate it
giffli Aug 26 @ 4:46am 
Спасибо большое, это изумительно.
muscular cat Aug 24 @ 3:08pm 
yes np for that wonderful sentence I just sent you