Right-click the PoC_Card_Unlocker_2026 -> "Run as Administrator." Why? Because the Unlocker needs to access the Registry and the VirtualStore, which require elevated permissions.
Modify the value data to a full string of hexadecimal FF values (e.g., changing the bitmask to enable all card IDs).
On updated versions of Windows 10 and 11, the game engine frequently redirects its local save repository away from Program Files and into the hidden ProgramData directory to prevent security conflicts.
While these games are nostalgic, they have aged significantly in terms of design and accessibility. yu gi oh power of chaos unlock all cards cheat upd
If you want a truly fresh experience rather than just a simple unlock, the modding community has created expansive overhauls for the Power of Chaos engine. The most notable is the "Power of Chaos AiO Trilogy" mod.
If you open the game and the cards are still locked, the game cannot find your system.dat file. Fix this manually: Press Windows Key + R , type regedit , and hit .
: The original games struggle with high resolutions. Community tools like the HD Mod on GitHub are now essential for playing at 1280x768 or higher. On updated versions of Windows 10 and 11,
Grant administrator permissions when prompted by Windows UAC and click to merge the keys.
This method uses a pre-configured registry file ( .reg ) and a common save file ( system.dat ) to tell the game that your collection is 100% complete. Step 1: Download the All Cards Save Files
Ensure you have Joey the Passion installed (and optionally Yugi and Kaiba ). The most notable is the "Power of Chaos AiO Trilogy" mod
Paste the downloaded system.dat file into the folder, overwriting the existing file. Step 3: Apply the Registry Fix
771 Cards (including all cards from previous games).