PES 2021 Sider v7.4.1 Season 2026 — What's New, How to Update and Full Install Guide
What Is Sider?
Sider is the most important tool in the PES 2021 modding ecosystem. Created by developer juce, it is a mod loader that runs alongside PES 2021 and loads custom content in real time — without permanently modifying the game's original files. Think of it as the engine that powers every other mod you install.
Without Sider, none of your installed mods will load when you launch PES 2021. Your facepacks, kitpacks, scoreboards, graphic menus, ball packs, and entrance videos all depend on Sider being active before the game starts. It is not optional — it is essential for any modded PES 2021 setup.
Sider uses a system called LiveCPK to load mod content dynamically from folders on your PC rather than requiring you to pack files into CPK archives. This makes installing, updating, and removing mods extremely simple — you just add or remove files from the relevant folders and Sider picks them up automatically.
What's New in Sider v7.4.1 Season 2026
Sider v7.4.1 was released on April 11, 2026 by developer juce. This is a focused update that addresses specific bugs and performance improvements rather than adding major new features.
Fixed Save Folder Logic
The most important fix in v7.4.1 addresses an issue with the save.folder configuration. In previous versions, certain save folder setups could result in corrupted save files or unnecessary overwrites of the SYSTEM00000000 file. This has been fully resolved in v7.4.1 — your save data is now handled correctly regardless of your save.folder configuration in sider.ini.
Improved netblock.lua
The netblock.lua module has been updated to skip more network, online, and live update checks when PES 2021 launches. This means faster startup times and fewer issues with the game attempting to connect to Konami's servers — which are no longer active for PES 2021. Thanks to community contributor Mohamed2746 for this improvement.
Better LiveCPK Performance
File existence checks for LiveCPK content and LiveCPK events in Lua modules have been optimised for better performance. If you have large facepacks or many mods installed, you may notice slightly faster loading times when launching the game with Sider v7.4.1.
New etrace.lua Example Module
A new example Lua module called etrace.lua has been included in the v7.4.1 release. This module demonstrates a simple smooth fade-in image effect — useful for modders who want to learn how to create image transition effects using Sider's Lua scripting capabilities.
Sider Version History — Quick Reference
| Version | Season | Key changes |
|---|---|---|
| v7.4.1 | 2026 | Save folder fix, netblock improvements, LiveCPK performance |
| v7.4.0.2 | 2026 | Minor stability fixes |
| v7.4.0 | 2026 | Season 2026 compatibility update |
| v7.3.4 | 2026 | Previous stable release |
How to Update from an Existing Sider Installation
Updating Sider is very simple and takes less than 2 minutes. You only need to replace two files — your existing configuration and mod content stays exactly as it is.
1 Download Sider v7.4.1
Click the download button at the bottom of this post to get the Sider v7.4.1 archive. Save it to a temporary folder on your desktop.
2 Extract the archive
Right-click the downloaded archive and choose Extract here using WinRAR or 7-Zip. Inside you will find the new v7.4.1 files including sider.exe, sider.dll, and the updated netblock.lua.
3 Replace only sider.exe and sider.dll
Copy the new sider.exe and sider.dll from the extracted v7.4.1 folder into your existing Sider installation folder — the one inside your PES 2021 game directory. Replace the old files when Windows asks.
4 Optionally update netblock.lua
If you want the improved network blocking from v7.4.1, also copy the new netblock.lua into your Sider modules folder:
This is optional but recommended for faster startup times.
5 Test your setup
Run sider.exe and wait for the icon to appear in your system tray. Then launch PES 2021. Check that your mods are loading correctly — if your kits, faces, and scoreboard all appear as expected, the update was successful.
Fresh Installation Guide — For New Users
If you are installing Sider for the first time, follow these steps from the beginning.
1 Download Sider v7.4.1
Download the archive using the link at the bottom of this post. Save it somewhere easy to find.
2 Extract to your PES 2021 game folder
Extract the contents of the archive directly into your PES 2021 installation folder — the same folder that contains pes2021.exe. The sider.exe file must be in the same folder as the game executable.
For Steam users the path is typically:
3 Configure sider.ini
Open sider.ini in Notepad and check these key settings are correct:
Also check that Kit Server is enabled if you plan to use a kitpack:
4 Create content folders
Inside your Sider folder, create these subfolders if they do not already exist:
sider\content\livecpk\
sider\content\livecpk-faces\
These are where your kitpacks, mod cpk files, and facepack folders will go.
5 Always launch Sider before PES 2021
Double-click sider.exe first. Wait until the small Sider icon appears in your system tray at the bottom-right of the taskbar. Then launch PES 2021 as normal. Sider will automatically hook into the game and load all your mods.
Common Issues and Solutions
Credits
Sider v7.4.1 was created and released by juce — the developer behind the entire Sider project. The improved netblock.lua was contributed by community member Mohamed2746. The etrace.lua example module was also created by juce to help the modding community learn Lua scripting for Sider.
Download Sider v7.4.1
⚙️ PES 2021 Sider v7.4.1 — Season 2026
The latest version of Sider for PES 2021. Required for loading all mods including facepacks, kitpacks, scoreboards and graphic menus.
- ✅ sider.exe — latest v7.4.1
- ✅ sider.dll — updated
- ✅ netblock.lua — improved
- ✅ etrace.lua — new example module
- ✅ Full sider.ini with all settings
You will be directed to our download page where the file is available.
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