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Patching

Crauzer edited this page Feb 23, 2026 · 1 revision

Patching

Patching is the process of applying your enabled mods to League of Legends. LTK Manager builds an overlay of all enabled mod files and injects them into the game.

How Patching Works

The patching process has two main phases:

1. Building the Overlay

LTK Manager combines all enabled mods into a single overlay directory. This involves:

  1. Indexing — Scanning enabled mods and their active layers
  2. Collecting — Gathering mod files organized by game data path
  3. Patching WADs — Building WAD archive overlays for each affected game data file
  4. String overrides — Applying any text replacements from mod layers

Progress is shown in real-time in the status bar.

2. Applying to League

Once the overlay is built, LTK Manager uses a patcher DLL to inject the overlay into the League of Legends client. The game reads from the overlay files instead of the original data.

Starting the Patcher

Click the Patch button in the status bar at the bottom of the window. The button shows the current patcher phase:

  • Idle — Ready to patch
  • Building — Creating the overlay (may take a moment depending on mod count/size)
  • Patching — Overlay applied, game is patched

Stopping the Patcher

Click Stop to remove the overlay and restore the game to its unmodded state. The patcher stops gracefully, cleaning up the injected files.

TFT Patching

By default, only Summoner's Rift game files are patched. To also patch Teamfight Tactics files, enable Patch TFT in Settings.

Constraints

While the patcher is running:

  • You cannot toggle mods on or off
  • You cannot switch profiles
  • You cannot reorder mods

Stop the patcher first, make your changes, then patch again.

Troubleshooting

Patcher won't start

  • Verify your League path is correct in Settings
  • Make sure League of Legends is installed
  • Check the log file for errors

Mods not showing in-game

  • Confirm the mods are enabled in your current profile
  • Make sure you started the patcher after enabling the mods
  • Check that the mod targets the correct game files

Patcher is slow

  • The first build takes longer as it processes all mod files
  • Large mods with many WAD files take more time
  • Building is the slow phase; applying is near-instant

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