UKMDUnlocker

v0.3.3·Updated 2026-10-11

Adds ULTRAKILL MUST DIE to the difficulty selection menu.

About this mod Author’s original text

UKMDUnlocker

UKMD Unlocker adds the ability to select the 'ULTRAKILL MUST DIE' difficulty on the difficulty select menu.

Installation

NOTE: This mod does not work on any ULTRAKILL version before patch 16

  • Download and install BepInEx
  • Download this and extract its contents to a folder in BepInEx/plugins

Building

Build-system dependencies:

  • gnu coreutils
  • gnu make
  • The 7zip command line utility
  • dotnet 9

Build steps:

  • Create a folder called "lib" in the root directory of the mod code
  • Add the following to it:
  • From BepInEx/core add:
  • BepInEx.dll
  • 0Harmony.dll
  • From ULTRAKILL_Data/Managed add:
  • Assembly-CSharp.dll
  • plog.dll
  • Unity.TextMeshPro.dll
  • UnityEngine.UI.dll
  • From AngryLevelLoader
  • AngryLevelLoader/AngryLevelLoader.dll
  • AngryLevelLoader/AngryUiComponents.dll
  • From PluginConfigurator
  • PluginConfigurator/PluginConfigurator.dll
  • run make release

The output file will be whyis2plus2-UKMDUnlocker-0.3.1.zip

Install & use Install: BepInEx plugin

  1. The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
  2. Recommended: use a community mod manager (such as r2modman) — pick this game, import the mod, and the manager sets up BepInEx and its dependencies for you.
  3. Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
  4. Launch the game — the BepInEx console logs every plugin it loads; seeing this mod in the log means it is installed.

Mods with listed dependencies need those installed too, or they will not load. Options are usually changed in-game or in the plugin's config file.

Dependencies

Install these first, or the mod will not work:

BepInEx-BepInExPack

File & checksum

Filename
UKMDUnlocker-0.3.3.zip
File size
26.8 KiB