Most professional modders now recommend Sider by Juce. Sider allows you to place modded assets in a livecpk folder outside the main game directory.

I can provide step-by-step instructions to fix your specific game configuration. Share public link

Certain players appear as "PLAYER_XXXX" with grey faces. Diagnosis: The dt80_300e_x64.cpk contains updated player IDs. Your custom database (EDIT file) is referencing an ID that the 300e file expects to be a live update, but your patch erased it. Fix: You must use a Database Editor (like PES 2021 Editor by ejogc ) to export the player data from your patch and ensure it matches the ID structure of the base Data Pack 3.0.

The Pro Evolution Soccer (PES) franchise has long relied on its passionate modding community to keep titles fresh, realistic, and visually stunning years after their official release dates. For , file manipulation is the cornerstone of this customization. Among the various archives found within the game's directory, dt80-300e-x64.cpk stands out as a critical data file associated with Konami’s official Data Packs.

The file is a core data component for eFootball PES 2021 Season Update , specifically associated with the official Data Pack 3.0 update released by Konami. In the PES file structure, .cpk files act as compressed archives containing game assets like player faces, kits, and stadium data. What is dt80-300e-x64.cpk?

For Pro Evolution Soccer (PES) 2021 players, maximizing the game’s visual and tactical realism is a top priority. One specific file name frequently appears in patch guides and modding forums: .

: If you are using an offline backup or a specific standalone patch environment, reputable PES modding forums (like EvoWeb) host clean archives of official Konami DLC files. Always ensure you download from trusted community threads to avoid malware. How to Generate and Organize It in DpFileList Generator

Extract to see:

A comprehensive overhaul by a Taiwanese modder, featuring full league licensing, Japanese and US leagues, 16,000+ real player photos, 219 national anthems, and 107 stadium chants. Its installation explicitly requires copying the dt80_300E_x64.cpk to the download folder.

: Back up your custom edit file from the Documents/KONAMI/eFootball PES 2021 SEASON UPDATE/ folder. Delete the old file, start the game to generate a clean slate, and then carefully re-apply your modern option files. If you are currently modding your game, let me know: