Batman: Arkham Asylum
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JaPuGr

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JaPuGr

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About this mod

This file contains the Play as Joker and Prey in the Darkness DLC for not only Steam, but also Epic Games.

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This game was free for Batman Day last year on Epic Games. This DLC was available on the Mac on Steam but not on PC. Somebody figured out how to adapt these files for PC. These files are the result of doing the same process onto the Epic Games Version (mainly using this site). 

Basically, here was the process (it was actually pretty simple):

1. Merge Arkham Asylum's BmGame folder with the folder of the same name from this mod (this will activate Prey in the Darkness but not Play as Joker).

2. open ShippingPC-BmGame.exe with a Hex Editor

3. Find offset 12153c6 (or search for 25 00 00 08 00 31 86 80 in a hex editor)

4. Replace 25 00 00 08 00 31 86 80 with 0D 00 00 08 00 89 86 80 06 00 00 to activate Play as Joker

These files are the result of this process. I've tested it, and it should work.

Nobody seems to have done this completely before (I made a Reddit post here before with the same files some time ago though). I decided that this should be more well known!