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Afterbirth Custom Challenge Launcher
Make your own challenge runs!
Created 1 year ago
This is my custom challenge launcher for Afterbirth.
You can create your own challenge runs and share them with friends.


-Customize starting HP and consumables
-Choose starting trinket and card/pill/rune
-Choose starting items
-Enemy and boss health multiplicator
-Simple item pool editor
-Load/save challenge runs and share them through codes or files
-Random run generator

The item pool editor is a very simple tool which let's you change/combine item pools. For example you could make treasure rooms contain angel room items instead of treasure room items or you could make shops sell devil items AND shop items.

If you find any bugs or you have any suggestions feel free to post them and they might be fixed/included in the next version. Also I'm not a native english speaker, so if you find any GUI text which is bad english feel free to correct me.


Just download the binary and start the .exe file. The tool should automatically detect your rebirth folder. If it doesn't it will prompt you to enter the root path of your Binding of Isaac - Rebirth installation.

Modify anything you want and hit the "Play" Button to start the run.

Using this tool may override following files. So it may collide with other mods which are using the same files:



x 924

- Added "Blindfolded" option

- Added "Deep Pockets" item

- Fixed bug where modifying itempools lead to an error message on starting the game.

- Added new items/trinkets and character unlocked by the ARG

- Minor bug fixes

- Randomized runs now randomly add items to the ban list

- Improved UI

- More "Random" buttons

- Ban items

- Choose a character for your challenge!

I´m too stupid for it and dont know how to actualy play the run i created
I think something is wrong. I hit Play, and it begins like normal. I look in my modded challenges and...nothing. Where do I save the file? I'm just saving it in Documents...
Afterbirth Custom Challenge Launcher custom challanges has like problems with runing if i do a challange where i use moms knife

can anyone help?

try redownloading it... maybe that will help.
Hey, im new to the modding community and this mod, can you only use items you have unlocked? if not then how do you start a challenge? i have one loaded in the CCL and i hit Play but it opens the game then nothing happens.. please help.
Is it WORKS for AfterBirth+
Programm is great
Great launcher! Love it. Have made some fun challenges with it.
Can someone PLEASE make one of these for Antibirth. Or if there already is one send me a link for it.
I used ACCL once and it turned off achievements, it isn't suposed to but, how can I revert this?
i press button "play" game launch and nothing... sorry my eanglish bad( help me please!
great mod, fun for learning new items
When will be the afterbirth plus one? and if it exists send me a link please.
Yes there is, and here's the link:
Ok, I can reply to your comment, (your reply to my reply), but can't see it, plz message it to me on steam instead so I can see it, there is a link to my steam account on my profile.
January 20, 2017 - 2 months ago

A new animated Planetarium theme (from Antibirth) is now available!

There is a new DLC search filter on the Browse Mods page.

Added the 50 new babies from Afterbirth+.

The What's New sheet will try to get your attention when there is a new site update.

Fixed some mod icons not changing after being updated.