Disclaimer: Always back up your original save files before using any editor.
For community-driven play, tools like the WAPES BAL Creator help players calibrate their stats according to real-world data for competitive 11v11 matches. How to Use a BAL Editor Safely bal editor pes 2021
Most modders argue: “It’s my save, I can do what I want.” Unlike online cheating, BAL is offline, so no competitive harm. However, leaderboards and shared “BAL stories” on forums create indirect pressure to edit. Disclaimer: Always back up your original save files
Most editors require you to launch the game first, then open the tool and "Attach" it to the PES 2021 process. However, leaderboards and shared “BAL stories” on forums
: While BAL is primarily offline, having an edited "Legend" player can lead to issues if you attempt to use that player in online modes or if the game's anti-cheat detects modified memory during a live session.
While official support for PES 2021 has ended, the modding community remains active. The most reliable editors are typically standalone .exe programs that read your BOL (Become a Legend) save files: