Viewing Mod
The Agony of Isaac
100+ new enemies, 2000+ new rooms
Created 4 years ago

An afterbirth+ version is in the works, please be patients! We've some amazing new stuff coming your way <3



Screenshot Album

  • Over a 100 new enemies! Ranging from spiderflies to sackheads!
  • New bosses! Can you defeat Aether and The Blind?
  • Eternal enemies! Including new eternal bosses! Proceed with caution.
  • New props! Ranging from boxes to gravestones!
  • Most enemies can now become champions! Because who wouldn't like regenerating lil'haunts?
  • New rooms! Almost every floor was given new rooms with a fitting theme!
  • A Basement Renovator Patch for those who want to create their own rooms with Agony's entities!
  • Both Afterbirth and Rebirth support!

Linux Isaac is case sensitive,
Running script to make everything lowercase fixes the issue. (Thanks to DashieGasai for the fix)
find my_root_dir -depth -exec rename 's/(.*)\/([^\/]*)/$1\/\L$2/' {} \;

Incompatibility issues with mods altering entities2.xml and any room files.

Clearly describe what happened, try to always include screenshots, the seed as well as the version of the mod you're using. Also be sure you followed the Installation instructions correctly!

Q: Do I have permission to use this mod in mine?
A: You can use Agony in your own mod as long as you follow these rules:
-Clearly state what Agony does in your mod's description
-Provide a link to Agony in your mod's description
-Only redistribute the files you modified, this means you can't include the new enemies sprites in your mod.
As long as you follow these little rules, you're free to do whatever you want with Agony!

Q: Afterbirth?
A: We feature the Afterbirth and the Rebirth version of our mod in the download. Be sure to install the correct one!

Q: How do I uninstall the mod?
A: Just delete all files/folders except the "packed" folder from the "resources" folder.

Q: Does this work with [name of a mod]?
A: As long as [name of a mod] either explicitly states that it works with Agony or doesn't edit any files that Agony already edits, it should work.

Q: Does this mod really add new enemies or does it replace existing ones?
A: This mod doesn't replace anything. All mod content coexists with the vanilla content.

Q: I get a RAR file from the download. How do I open that?
A: You need to install 7-Zip or a similar program.

All feedback is greatly appreciated! If you think something is not right, please, feel free to leave a comment clearly explaining why.
I recommend playing on hard mode for all the content to show up properly!
I strongly recommend installing the mod manually, mod loaders have trouble installing this mod.

Drop the "resources" folder for the appropriate version into your game folder (%SteamRoot%\SteamApps\common\The Binding of Isaac Rebirth\) and you're good to go! I recommend using a fresh, unmodded copy of the game, make sure to always backup your game files!

Huge thanks to DedChar, without whom the updates woudl not keep coming!
Thanks to Elkopolo, huge contributor to the mod.
Huge thanks to J??, another really big contributor to the mod, here's his tumblr)
, go check him out!
And thanks to anyone who's contributed to the mod in any way, shape or form:
Epicmidget, TheBLP, Vikr, StainBreak, NintendoFan37, Reiji, SomeGuy, Stewartisme, IkanaCanyon, MidnightBrimstone, SDLoA, M_Blox, MajorWipeout, Dassery, LoudSpeaker, SomeGuyNamedJon, NotYourSagittarius, ArMM1998, Yaomon, MitBoy, Tomoscky, Wolter, Jean-Alphonse, Bonjouro, Chronometrics, Walrus, Poiuy.
Special thanks to Noodle for making this amazing site and for being helpful!
Feel free to shout at me in a comment if I forgot anyone!


x 1644

- All the rooms have now been ported!

- Bunch of bugfixes

- Bugfixes, yaay!

- Thanks to dedChar, the bosses work properly now, yay :D

- Fixed unfair rooms (thanks to /u/Zamiell)

- Updated BR patch

- Fixed unfair rooms (thanks to /u/Zamiell)

- Updated BR patch

- Added a few new greed waves

- Made the rooms more frequent

- /!\ IMPORTANT /!\ Make sure to remove any old version of Agony before installign this new one, not doing so WILL cause major issues. Sorry for the inconvenience. :)

- Lots of bugfixes

- Some special rooms have been updated, yay!

- Minor tweaks

- All content hs been updated thanks to dedChar, yay!

- Fixed a bug that was messing the animations up

- Updated some of the content for Afterbirth.

- updated to zip file

It didn't work. Using afterbirth. Help me.
bro it literally says that there is an afterbirth version in the making. Just look in the description...
So...I used a rar to zip converter because I haven't the slightest clue how to use 7-zip, but when I did that and opened the agony folder...there were no folders inside, just several pngs of already existing items and a READ ME. Did I do something wrong?
No, you just have to ccopy and paste all of those into the resource folder
wait...WHERES THE REBIRTH VERSION help i just want this mod.
Does this work on the antibirth mod?
do i have to uninstall aftirbirth to play this mod?
hi does any one know how long until ab+
Truly one of the best Isaac mods out there.
I feel like I might be doing something wrong, but I haven't been seeing too much of the new content, aside from 2 new room layouts and some spider web enemies on the first floor. If I haven't done anything wrong, then I would highly suggest adding more, I don't know how to explain this, encounter rates? for the new stuff, other than that, mod is great
Look's sick! I love the bag heads!
June 5, 2018 - 2 years ago

The download button will now give additional details and link to a helpful announcement when you have not been verified as owning the game.