ZaeroMonsters

v3.0.4·Updated 2026-05-18

An asset bundle pack for Rundown Devs containing 15 model customizations +6 variants, and 11 custom textures.

About this mod Author’s original text

Zaero's Monster Pack

Custom enemy models that can be used to diversify your enemies more than normally possible! These enemies originate from "Eclipse," "Fatal Experiment 2," "Solo Trials," and "Redemption" if you would like to experience their originally intended use. Otherwise, use them as you please.

As of v3, "Fatal Experiment 3" models and cosmetics have been added. Documentation will be added at a later date.

Note: these models do not come with the special abilities the enemies are intended to use. Those need to be set up in EnemyData and/or EEC.

Current available models: "Brawler," "Giant Brawler," "Bleeders", "Grapplers," a tank variant, "Crystalline," "Bloody Mass & Infestation," and "Withered"

Current available textures: "Withered" (mtr_NesterR7), "Afflicted" (mtr_AfflictedR7), "Hallowed" (mtr_Hallowed), "Bleeder" (mtr_strikerflesh), and "Infested" (InfestedA, InfestedB, InfestedC)

Important Notes:

  • Brawlers: You will need to set the head scale to 0.1 or less as this model has an entirely custom head model. The head is considered a "weakspot." Recommended to use on the "Striker_CB" model due to limitations in color variance.
  • Bleeders: No changes are needed to your enemy model, but the claws and spikes have a bloody texture, so it is recommended to use EEC to override the enemy's material to ""mtr_StrikerFlesh"," for the best results. This material is included in this asset bundle pack.
  • Grapplers: The size of the tentacle VFX are static and can not be changed in game, so you will need to resize the enemy using "SizeRange" for the best results. The VFX are also designed to match the color scheme of the "birther" texture which would need to be set up with EEC.
  • Bloody Mass: The VFX have the same restrictions as grapplers so you need to adjust the enemy SizeRange. This enemy is intended to be used with EEC's "FullyInvisible" feature or it will also have a normal enemy model and look stupid. I recommend checking the Custom/Model.json and EnemySFX from Redemption if you wish to use the original version of these enemies.
  • Tank Variant: You can only change the tank's textures if you use EEC due to this being a model customization, otherwise the main tank texture will be the default vanilla one. This customization only affects the weakspots.
  • Crystalline & Withered: I have not tested these on the Shadow Striker, Birther, Tank, or Pouncer models. I don't see why they wouldn't work. They have been tested to work on Striker, Shooter, Charger, and Hybrid models. Both are intended to be used with EEC to change the skin texture to "MWP_Crystal" for Crystalline and "mtr_NesterR7" for Withered.
  • Crystalline "spikes" act as an armor hitbox. You can edit this in EnemyBalancing and set the armor multiplier to whatever you want.

Recomended "SizeRange": Grappler 1.2 to 1.4, Big Grappler 1.8 to 2, King Grappler 2.2, Emperor Grappler 2.4, Bloody Mass 1.25 to 1.35, Bloody Infestation 2.4, Hallowed & Hallowed B 1.4, Hallowed C 2.0

Prefabs use in EnemyDataBlock

Brawlers:

"ModelCustomization": "Assets/CustomAssets/Enemies/Content/Customization_Brawler.prefab",

"ModelCustomization": "Assets/CustomAssets/Enemies/Content/Customization_GiantBrawler.prefab",

Bleeders:

"ModelCustomization": "Assets/CustomAssets/Enemies/Content/Customization_Bleeder.prefab",

Grapplers:

"ModelCustomization": "Assets/CustomAssets/Enemies/Content/Custom_GrapplerR7.prefab",

"ModelCustomization": "Assets/CustomAssets/Enemies/Content/Custom_BigGrapplerR7.prefab",

"ModelCustomization": "Assets/CustomAssets/Enemies/Content/Custom_KingGrapplerR7.prefab",

"ModelCustomization": "Assets/CustomAssets/Enemies/Content/Custom_EmperorGrapplerR7.prefab",

Tank Variant: also works for bither model.

"ModelCustomization": "Assets/CustomAssets/Enemies/Content/Customization_TrueTank.prefab",

Crystalline: the crystals act as armor, adjustable in EnemyBalancing

"ModelCustomization": "Assets/CustomAssets/Enemies/Content/Customization_Crystalline.prefab",

Install & use Install: follow the bundled instructions

  1. Unzip the archive from playbuff and read the bundled readme / instructions first.
  2. Most mods rely on the game's mod loader — the usual route is a community mod manager (such as r2modman): pick this game, install, and it handles the loader and dependencies.
  3. For a manual install, put the mod files into the matching Mod / plugins folder inside the game directory.
  4. Launch the game to confirm it loaded; mods with listed dependencies need those installed as well.

Install locations vary a lot between mods — the bundled readme is the most reliable guide.

Dependencies

Install these first, or the mod will not work:

dakkhuza-MTFOBepInEx-BepInExPack_GTFO

File & checksum

Filename
ZaeroMonsters-3.0.4.zip
File size
21.1 MiB