Many PES 2020 mods still work well with the PES 2021 Season Update, including BallServer, StadiumServer, Kitserver and several camera modules. ScoreboardServer is not compatible yet. This Sider build (7.0.0) is still being tested — please report bugs if you find any.
What is Sider?
Sider is a lightweight companion tool for PES 2021 and PES 2021 Lite. It enables small gameplay tweaks (like free side-select), runtime content replacement, and Lua scripting for community mods.
- LiveCPK — replace game files at runtime without repacking CPK archives.
- Lua scripting engine — write custom mods and gameplay logic using Lua.
- Easy integration with popular mods: stadiums, kits, balls, cameras, and more.
LiveCPK lets you edit textures or 3D models while the game runs, depending on when the game reads the replaced files. If you're comfortable with basic programming, you can create your own game logic using Sider's scripting API. For technical details, see the official Sider documentation.
How to Install
- Download the ZIP package: Sider 7.0.0 — mapote.com.
- Extract the ZIP file to a folder where your Windows user account has full permissions (recommended: Desktop, Documents, or your user folder).
- Make sure your system is Windows 7 64-bit or newer. Sider does not support XP/Vista.
- From version 6.3 onward, Sider is self-contained — no extra installs required.
Important: Do not place Sider files directly inside your Steam PES 2021 folder. Mixing files may cause permission issues, accidental deletion during Steam verification, or difficulty when uninstalling later.
How to Use
Sider does not require Administrator privileges — run it under your normal Windows account (the same account you use to start the game).
One-click (recommended):
- Run
sider.exe. A small Sider window will open and automatically launch PES 2021. - Once the game starts, Sider injects
sider.dlland runs in the background — you can play with mods active.
How to Uninstall
To remove Sider, close the game and delete the Sider folder from your computer. You can always run PES 2021 normally via Steam without Sider.
Compatibility Notes
Many PES 2020 mods work, but some modules (for example ScoreboardServer) may be incompatible. This version needs user testing — if you find issues, report them to the modding community or leave a comment on the download page.
Credits & Third-Party Libraries
- Game research: nesa24, juce, digitalfoxx, zlac
- Programming: juce
- Testing: zlac, nesa24, Chuny, Hawke, sonofsam69, Cesc Fabregas, Paul LFC, mota10, predator002
- Blue Champions League ball: Hawke, digitalfoxx
- Trophies: MJTS-140914, juce
Third-party components: LuaJIT, Knuth-Morris-Pratt (Project Nayuki), FW1FontWrapper, zlib, miniaudio.
Download & Documentation
Official Sider Documentation — includes scripting guides and full readme: Readme.
Tags: PES 2021 Mods, Sider, LiveCPK, PES Modding
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