FLEP custom patches: updates, testing and discussion

    About

    FLEP (FLExible Patcher) is a revamped and updated derivative of TREP's custom patches module. It is compatible with TRNG version 1.3.0.7.

    New Workflow

    Downloads

    FLEP main program
    Custom patches (all versions)

    Old Workflow

    Downloads

    FLEP main program (flep.dll source code)
    Custom patches

    Tools

    Leikkuri font converter for FLEP (source code)

    Common Files

    Additional Files

    Particles testing ground (NOTE: You might get a false positive for this. The files are clean.)
    Mine Cart WAD with sounds
    Quad Bike WAD with sounds

    Source Code

    FLEP main program

    Installation Instructions

    1. Download the FLEP main program and the custom patches from the Downloads section of either one of the workflows.
    2. Unpack everything in your TRLE game folder (replacing tomb4.exe).
    3. Install the plugin through TombIDE or NG Center.
    4. Launch FLEP, apply the patches you want, then press the "Modify" button.
    5. Add new script commands in TombIDE or NG Center if a patch requires it.

    Additional steps for NG Center users

    6. Navigate to your NG Center installation folder.
    7. Enter the "TRNG" folder and delete or rename tomb4.exe! A warning message will appear every time you open NG Center, but your tomb4.exe will no longer be overwritten.

    Transition Guide

    1. Uninstall Plugin_FLEP through TombIDE or NG Center.
    2. Delete the following files:

    flep.dll
    libtcc.dll
    msvcp100.dll
    msvcr100.dll
    patches.bin
    patches.dll

    3. Install the new workflow following the instructions above.

    Changelog

    Edited 18 times, last by ChocolateFan (December 20, 2025 at 1:12 AM).

    As of today, FLEP comes in two workflows.

    The new workflow is intended to be an efficient, simple and robust drop-in replacement for the old workflow. But both workflows will be worked on in the foreseeable future, until the old workflow has no more users. At this point, it will be abandoned and only the new workflow will be updated.

    If you are starting your project now, or started recently, the recommendation is to use the new workflow. On the other hand, if your project is nearing completion, stick with the old workflow.

    As usual, feedback is welcome!

    From the FLEP developers (in alphabetical order): ChocolateFan, Dermahn, Krystian.
    Special thanks to: Troye.

    Edited once, last by ChocolateFan (July 30, 2024 at 9:17 PM).

    Version 9 is released, links in the first post.

    Fixed patches

    • Fix baboon bug

    New patches

    • Fix camera cutoff
    • Fix loading level bug
    • Wibble rooms TREP-style
    • Wibble objects TREP-style
    • Remove fire smoke
    • Black fire smoke
    • Crawl tilting

    Fixed commands

    • Meshswap of Lara meshes

    New commands

    • SPEEDUP
    • SPEEDDN

    Version 13 is released, links in the first post.

    New patches

    • Float matrices

    Showcase by SrDanielPonces:

    FLEP Patch - Float Matrices Showcase
    Link: https://www.tombraiderforums.com/showpost.php?p=8539691&postcount=45Vanilla TR4 uses integers for animation coordinates, which gives this "shaking" eff...
    youtu.be

    Showcase by LoreRaider:

    TRNG - FLEP Patches | Float Matrices
    This video shows a comparison between the original integer interpolation vs float interpolation for animations, the latter was implemented via FLEP by Chocol...
    youtu.be

    Sorry I did not see your reply!

    In TR4 (and TRLE) Lara says No if you try to use the wrong key or puzzle, but if you just do not have the corresponding item and try to press Action near to a Key Hole or Puzzle Hole, Lara will be silent. Also she is silent if trying to interact with an already activated Key Hole. Before TR4 she said No for these situations as well.

    Version 19 is released, links in the first post.

    New patches

    • Electric Lara

    Showcase by Naotheia:

    TRLE Watter Works ⚡️
    ChocolateFan, Krys
    www.youtube.com

    Edited 3 times, last by ChocolateFan: Merged a post created by ChocolateFan into this post. (October 27, 2025 at 3:39 PM).

    Version 20 is released, links in the first post or https://amh-design.ch/LLB/2025/day20.

    New patches

    • Headlight

    New commands

    • Change hair type

    Fixed patches

    • Classic vehicles

    This version adds the Sub and Subsuit as usable vehicles! Check out Naotheia showcase videos:

    TRLE Joyride 🌊
    Patch by ChocolateFanMusic by Krash: https://soundcloud.com/krash-music/electro-circuitAnimations by me
    www.youtube.com
    TRLE Subsonic 🐢
    Patch by ChocolateFanMusic by Krash: https://soundcloud.com/krash-music/electro-circuitDon't forget to ... Sub! 🥁
    www.youtube.com
    TRLE Deep Dive 🤿
    Patch and Design reshaped by ChocolateFan and myself.Now available in your calendar. Happy Holidays!
    www.youtube.com

    Special thanks to Naotheia for the redesign, animations, testing, and for being such an awesome person.

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