Installing UE4SS for Code Vein II

A step-by-step guide to installing the UE4SS Lua modding framework for Code Vein II via Steam.

1Download UE4SS (experimental-latest)

1-1. Open the release page

The RE-UE4SS releases page on GitHub, showing the experimental-latest release selected in the release list.
The RE-UE4SS releases page with the experimental-latest release selected.

1-2. Expand the Assets list

1-3. Download the UE4SS zip file

The expanded Assets section on GitHub, with the Assets toggle and the UE4SS zip file highlighted for download.
Click Assets to expand the list, then download the file starting with UE4SS_.
Important: Make sure you download the file that starts with UE4SS_ (e.g. UE4SS_v3.0.1-1012-gc838a8ac.zip) — not Source code (zip), which will not work.

2Open the game folder

2-1. Browse local files from Steam

Steam library context menu for CODE VEIN II, with Manage and Browse local files highlighted.
Right-click (or use the gear menu on) CODE VEIN II, then select Manage → Browse local files.

2-2. Confirm the folder opens

3Install UE4SS

  1. Extract the zip file you downloaded in Step 1.
  2. In the game folder opened in Step 2, navigate to CodeVein2 → Binaries → Win64.
  3. From the extracted zip contents, copy dwmapi.dll and the ue4ss folder into the Win64 folder opened above.
Two File Explorer windows side by side: the extracted UE4SS folder containing dwmapi.dll and the ue4ss folder on the right, and the CodeVein2\\Binaries\\Win64 destination folder on the left, with an arrow showing the files being copied over.
Copy dwmapi.dll and the ue4ss folder from the extracted UE4SS archive into CodeVein2\Binaries\Win64.
Important: Both dwmapi.dll and the ue4ss folder must sit directly inside Win64 — not inside Binaries, not inside the game's root folder, and not nested inside each other. Copying to the wrong location is the most common cause of installation failure.

4Edit mods.txt and disable CheatManagerEnablerMod

4-1. Open the Mods folder

File Explorer showing the ue4ss/Mods folder contents, with mods.txt highlighted at the bottom of the file list.
mods.txt is located inside Win64\ue4ss\Mods.

4-2. Open mods.txt in a text editor

4-3. Disable CheatManagerEnablerMod

Two Notepad windows side by side showing mods.txt before and after editing: on the left, CheatManagerEnablerMod is set to 1; on the right, it has been changed to 0.
Before (left) and after (right): change only the value at the end of the CheatManagerEnablerMod line, from 1 to 0.
Tip: Only change the number at the end of the line. Be careful not to delete the entire line or accidentally introduce stray whitespace, and remember to save the file (overwrite mods.txt — do not save as a new file).

Installation complete

Launch the game and confirm that it starts up without crashing.