Polarite

v1.1.1·Updated 2026-07-27

An ULTRAKILL multiplayer mod serving as an alternative to Jaket.

About this mod Author’s original text

Polarite

An ULTRAKILL multiplayer mod serving as an alternative to Jaket.

\!\Watch the update trailer

Works with Steam.

What Syncs

\- Player movement, animations, health, their custom skin, and bullets

\- Weapons equipped

\- Respawning, and dying

\- Enemy spawns, Enemy positions and rotations, damage to enemies, radiance

\- Breakables, hook points, checkpoints

\- Arenas and Skulls

\- Cybergrind and Sandbox

\- Fraud Elevators

Manual Installation

1\. Make sure you have BepInEx for ULTRAKILL

2\. Extract the downloaded ZIP

3\. Drop the extracted folder into your BepInEx/plugins folder

4\. Launch ULTRAKILL

Credits

Mod art \& Website - Xulfur

Voice chat - doomahreal

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-BepInExPackEternalsTeam-PluginConfigurator

File & checksum

Filename
Polarite-1.1.1.zip
File size
21.6 MiB