By verifying files, clearing your item cache, and—if necessary—hex editing the save, you will reclaim your save file. Do not let a hexadecimal ghost end your path to Dead God.
Introduction: The Cryptic String That Crashes Your Run You are 35 minutes into a god-tier Tainted Lost run. You have Sacred Heart, Glitched Crown, and just picked up R key. Suddenly, the screen freezes. A windows dialog box appears with the code: The Binding of Isaac Repentance -01009CD0167E20...
Now go hug Tainted Forgotten and never press Alt+F4 during a Mom fight again. Have you encountered a different variant like -01009CD0XXXXXX? Share your crash log in the comments. For more Isaac error codes, check our article on "The 0x0000005_TBOI_Repentance Glitch." By verifying files, clearing your item cache, and—if
If you have seen this hexadecimal string, you are not alone. While not an "official" error code, follows the pattern of a memory read/write violation specific to the Repentance DLL hooks. This article will dissect what this code likely represents, why it appears, and how to permanently fix it. What Does "-01009CD0167E20" Actually Mean? Standard Windows error codes (like 0x0000005) are short. However, Isaac —being a game built in ActionScript 2.0 (Flash) then ported to C++—produces unique memory logs. You have Sacred Heart, Glitched Crown, and just
However, if you see this code , run Windows Memory Diagnostic or MemTest86 . A failing RAM stick at physical address 01009CD0 (roughly the 16MB mark of your RAM) is the only hardware cause. Conclusion: You Can Defeat This Error The binding of Isaac Repentance is a masterpiece held together with digital duct tape and prayer. The code -01009CD0167E20 is scary, but it's just a single corrupted item reference or a broken mod hook.
Your heart sinks. The run is gone. The save file may be corrupted.