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General Questions

cslol-manager is a modern, high-performance mod manager for League of Legends. Built with C++ and Qt, it allows you to easily install, manage, and create custom skins and modifications using the Fantome mod format.
cslol-manager is open-source software that you can inspect and verify. However:
  • This software is not endorsed by Riot Games
  • Use at your own risk
  • Modifying League of Legends may violate Riot’s Terms of Service
The software only modifies local game files and does not provide gameplay advantages or replicate paid content when used properly.
cslol-manager is currently in maintenance mode. The League Toolkit team has shifted development focus to the new LTK Manager.
For the latest features and active development, check out LTK Manager.
  • Operating System: Windows 10 or 11 (64-bit)
  • Game: A valid League of Legends installation
  • Additional: No special dependencies required - the application is self-contained

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Installation & Setup

  1. Navigate to the latest releases
  2. Download cslol-manager.exe or the zip bundle
  3. Run the application
  4. Point it to your League of Legends game executable
See the Installation Guide for detailed instructions.
The default installation paths are:
  • Riot Client: C:\Riot Games\League of Legends\Game\League of Legends.exe
  • Legacy Client: C:\Riot Games\League of Legends\LeagueClient.exe
If you installed League in a custom location, navigate to that directory.
No, cslol-manager is built specifically for Windows and requires Windows 10 or later. League of Legends itself is also Windows-only (though it can run on Mac).

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Mods & Content

Fantome (.fantome) is the industry-standard mod format for League of Legends. It’s a packaged format that contains:
  • Mod files and assets
  • Metadata (name, author, version)
  • Preview images
Learn more in the Fantome documentation.
Be cautious when downloading mods. Only use mods that:
  • Don’t replicate paid League of Legends content
  • Don’t provide competitive advantages
  • Come from trusted sources
Popular sources include community mod sites and creator pages. Always verify the content complies with the CSLOL DLL Policy.
Yes! cslol-manager includes mod creation tools:
  • Create mods from RAW folders
  • Pack/Unpack .wad files
  • Edit mod metadata and preview images
See the Mod Creation Guide for details.
The following content is strictly prohibited:Competitive Integrity:
  • Ability range indicators
  • Hitbox visualization
  • Any unfair gameplay advantages
Paid Content Replication:
  • Copies of purchasable skins
  • Direct ports from PBE or live content
  • Content designed to replicate paid cosmetics
Creative transformative works are permitted. See CSLOL DLL Policy for details.

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Server Support

Officially supported: All Riot-operated servers (NA, EUW, EUNE, KR, OCE, etc.)
Not officially supported:
  • Asian servers (some regions)
  • Garena-operated servers (SEA, TW, etc.)
These servers may experience issues or may not work at all.
Garena servers use a different client infrastructure and patching system. The CSLOL injection method was designed for Riot-operated servers and may not be compatible with Garena’s implementation.

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Troubleshooting

Try these steps:
  1. Verify the mod is enabled in cslol-manager
  2. Ensure you’re using the correct profile
  3. Restart League of Legends completely
  4. Check the log file for errors (located next to cslol-manager.exe)
  5. Verify the mod is compatible with the current League patch
Common solutions:
  • Run as Administrator
  • Ensure you’re on Windows 10 or 11 (64-bit)
  • Check that your antivirus isn’t blocking the application
  • Download the latest version from releases
The log file is located in the same directory as cslol-manager.exe. Look for a file named log or cslol-manager.log.This file contains diagnostic information that can help troubleshoot issues.
Check the known issues first for workarounds.To report a new bug:
  1. Go to GitHub Issues
  2. Create a new bug report
  3. Upload your log file
  4. Describe the issue and steps to reproduce
See Contributing for more information.

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Development & Contributing

Yes! Contributions are welcome. Please:
  • Submit Pull Requests for bug fixes and improvements
  • Open issues for feature requests or bugs
  • Follow the project’s coding standards
See the Contributing Guide for details.
Since cslol-manager is in maintenance mode, major new features may be redirected to LTK Manager.
Yes, but you must comply with the CSLOL DLL Policy. Key requirements:
  • Re-sign with your own code-signing certificate
  • Publish transparency information
  • Implement anti-skinhacking controls
  • Do not modify or tamper with the DLL
Violations will result in immediate termination of your distribution rights.
Yes! cslol-manager is open-source under the GPL-3.0 license.You can view, modify, and distribute the source code according to the license terms.

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