Nebby-MonsterVariantsPlus icon


An Add-On for Rob's Monster Variants mod, Variants now have a chance to drop items, give extra gold and experience! Also comes with new Variants & 'Other' Variants! Configurable! Now on Github!

Last updated 2 hours ago
Total downloads 36881
Total rating 13 
Categories Mods Enemies Artifacts
Dependency string Nebby-MonsterVariantsPlus-1.4.2
Dependants 3 other mods depend on this mod

This mod requires the following mods to function

bbepis-BepInExPack-5.3.1 icon

Unified BepInEx all-in-one modding pack - plugin framework, detour library

Preferred version: 5.3.1
rob-MonsterVariants-1.3.8 icon

Adds rare, powerful monster variants to make runs more difficult. Now properly networked.

Preferred version: 1.3.8



  • An Addon for Rob's MonsterVariants
  • Adds Custom Variants on top of Rob's Existing Variants
  • Killing a Variant now Gives rewards Depending on their Tier (Common, Uncommon & Rare)
  • (Note, Tiers are not mentioned in Rob's page, each Variant has a Tier assigned to it which cannot be changed via configuration.)
  • Rewards include Extra gold based off a Multiplier, Extra XP based off a Multiplier, & a Chance for an item to drop from the Variant (As if the Artifact of Sacrifice was Active).
  • Rewards Configurable, including the Gold Multiplier, the XP Multiplier, & the Item drop chances.


Gold Bonus

  • Receive extra gold when killing a Variant, based off a Multiplier & the Variant's Tier. Values are fully Configurable.

Default Values:

- 1.3 for Common Variants
- 1.6 for Uncommon Variants
- 2.0 for Rare Variants
  • For more information regarding the Gold Bonus, such as how it works and it's default values, check out it's wiki page. Link

XP Bonus

  • Receive extra XP when killing a Variant, based off a Multiplier & the Variant's Tier. Values are fully Configurable.

Default Values:

- 1.3 for Common Variants
- 1.6 for Uncommon Variants
- 2.0 for Rare Variants
  • For more information regarding the Gold Bonus, such as how it works and it's default values, check out it's wiki page. Link

Item Drops

  • Each time you kill a Variant, there's a small chance for it to drop an Item which's tier can be White, Green or Red.
  • Chances are highly configurable, and each Tier has it's own chances. (drop chances are not affected by the Luck stat).

Default Values:

Common Variants:
- 3% for a White item
- 0% for a Green item
- 0% for a Red item

Uncommon Variants:
- 5% for a White item
- 1% for a Green item
- 0% for a Red Item

Rare Variants:
- 10% for a White Item
- 5% for a Green Item
- 1% for a Red Item
  • To avoid the player farming items inside hidden realms, a special config entry exists to determine how the mod calculates the chances for an item drop.

The Settings are:

- Unchanged:No changes are made.
- Halved: When the variant dies, there's a 50% Chance the mod will roll the dice to determine wether or not an item spawns.
- Never: Variants never drop items in hidden realms.

It is highly recommended that you check out it's Wiki page, since there you can find a better explanation of how the item drop mechanic works. Link

New Variants

Steel Contraption


  • Monster Variants Plus adds new Variants to the game

  • The end goal is to have at least one variant per type of enemy.

  • Just Like in the Original Monster Variants, their spawn chance can be changed in the config file.

  • All of my variants have custom names, so if you find a new one, you can ping it and it's name will show up.

  • If you don't want any new variants, you can also disable the entire section in the config file.

  • Due to the increasing list of variants, from now on only their Names and it's spawn chances will apear in the list below, you can check out the MonsterVariantsPlus wiki for all the details regarding the new Variants. Link

  • Or you can click a variant's name and a new browser tab will open up with it's wiki entry.

Lesser Wisp Variants

Leastest Wisp

- 7% Chance

Almost-But-Not-Quite-Archaic Wisp

- 4% Chance

Lesser Stone Wisp

- 2% Chance

Brass Contraption Variants

Steel Contraption

7% Chance

Aluminum Contraption

- 7% Chance

Hermit Crab Variants

Mortar Crab

- 5% Chance

Clay Templar Variants

Vampiric Templar

- 5% Chance

Mini Mushrum Variants


- 5% Chance


- 10% Chance


- 2% Chance

Parent Variants


- 8% Chance


- 6% Chance

Imp Variants

Bruiser Imp

- 10% Chance

Ichor Imp

- 5% Chance

Bighorn Bison Variants

Alpha Bison

- 5% Chance

Greater Wisp Variants

Wisp Amalgamate

- 8% Chance

Kinda-Great-But-Not-Greater Wisp

- 6% Chance

Greater Stone Wisp

- 2% Chance

Solus Probe Variants

Swarmer Probe

- 7% Chance

Elder Lemurian Variants

Incinerating Elder Lemurian

- 5% Chance

Ghost of Runald

- 4% Chance

Ghost of Kjaro

- 4% Chance

Stone Golem Variants

Ye Olde Golem

- 3% Chance

Grandparent Variants

Sun Priest

- 4% Chance

Scavenger Variants


- 8% Chance

Clay Dunestrider Variants

Starving Dunestrider

- 4% Chance

Devourer Dunestrider

- 2% Chance

Solus Control Unit Variants

Malfunctioning Solus Control Unit

- 4% Chance

Alloy Worship Unit Variants

Malfunctioning Alloy Worship Unit

- 4% Chance

Stone Titan Variants

Ancient Stone Titan

- 4% Chance

Aurelionite Variants

Ancient Aurelionite

- 4% Chance

Aurelionite Colosus

- 2% Chance

Pygmy Aurelionite

- 2% Chance

Beetle Queen Variants

Beetle Matriarch

- 4% Chance

Beetle Empress

- 2% Chance

Modded Variants

  • Monster Variants Plus also adds variants for modded enemies, given if their mod is installed.

  • All the things said in the "New Variants" section also applies to these variants

Clay Soldier

- 15% Chance

Clay Assasin

- 7% Chance

Enraged Ancient Wisp

- 4% Chance

Amalgamated Ancient Wisp

- 2% Chance

Aeonic Wisp

- 4% Chance

Kinda-Archaic Wisp

- 7% Chance

Archaic Stone Wisp

- 2% Chance

Other Variants

  • Other variants is a new concept, where Nebby adds variants for potentially helpful Creatres.

  • Other Variants can be toggled OFF with a simple boolean switch on the config file.

Beetle Guard Variants (Queen's Gland)

Beetle Guard Brute

- 25% Chance
- Taken directly from Robs Monster Variants.

Beetle Guard Sharpshooter

- 2% Chance
- Taken directly from Robs Monster Variants.

Squid Polyp Variants

Chaingun Squid

- 10% Chance

Sniper Squid

- 2% Chance

Cannon Squid

- 3% Spawn Chance

Lunar Squid

- 4% Spawn Chance

Time Bomb Squid

- 2% Spawn Chance

Not listed here are special other Variants for Mystic Items. When Mystic Items is found in your mod list, MVP will enable special variants for the Legendary Mask's Archaic Wisps. These variants are exactly the same as the normal archaic wisp variants and have their same spawn chances.

Artifact of Variance

  • MVP Adds a new artifact called the Artifact of Variance

  • The Artifact causes all monster variants spawn rates to be multiplied by 2

  • Multiplication number can be increased in the Config File

  • Has an option for increasing rewards alongside spawn rate (Disabled by default).

  • More information can be found in it's respective wiki page. Link


  • To install the addon, simply drag the MonsterVariantsPlus.dll onto your plugins folder. Make sure Rob's DLL is also there, or else the plugin will not activate.

Future Plans

  • Have Boss variants drop their Boss item based off Chance.
  • Create actually pleasing to the eyes textures for the variants instead of the awful look of some of them cough cough Alpha Bison cough cough
  • Wait for Rob to implement DeathState replacers to replace the Wisp Amalgamate's death behavior instead of using a hook, which would increase performance overall.
  • Make some wizardry to improve the Wisp Amalgamate's Death explosion & it's light emmiting properties so they arent green.


In case you need to report a bug, please do so using Github's Issue Tracker found Here
In case you have a suggestion for a variant, please suggest it in the Github's issue tracker using the correct label. I am no longer taking variant suggestions via discord.
I also hang out in the Official Risk of Rain 2 Modding Discord Server under the name of "Nebby" in case you want to contact me for other purposes.

Special Thanks

Rob, for making his MonsterVariants mod and helping me a lot with questions i've had.

KomradeSpectre, for helping me a ton with making the variants have custom skins and more stuff i can't write rn.

Aaron, which helped making the Artifact of Variance a reality.

Dgosling and DestroyedClone for helping me with the Stone Wisps


'1.4.2' Nebby did a Poopy 2, Electric Boogaloo

  • Fixed a problem with the Artifact of Variance, it should no longer make all variants always spawn, whoops.

'1.4.1' Stone Wisp Update

  • Added the Following Variants

    • Lesser Stone Wisp

    • Greater Stone Wisp

    • Archaic Stone Wisp

    • Ghost of Runald

    • Ghost of Kjaro

    • Blighted Imp

  • Added Support for Mystic Items

'1.4.0' Artifact of Variance Update

  • Added the Artifact of Variance
  • Added Ye Olde Golem Variant
  • Tweaked the Following Variants

    • Steel Contraption

      • Changed primary attack, now launching a massive brass ball instead of 3 brass balls.

      • 0 Armor -> 25 Armor

    • Aluminum Contraption

      • 1 Alien Head -> 2 Alien Heads
    • ADShroom

      • 6% Spawn Chance -> 5% Spawn Chance

      • 0.06% Damage -> 0% Damage

      • Now has a Shattering Justice Alongside 10 Alien Heads

    • Incinerating Elder Lemurian

      • Now shoots Lemurian fireballs instead of Elder Lemurian Fireballs

Looking for an Old Version's Change log? check it in the Github's Readme

Available versions

Please note that the install buttons only work if you have compatible client software installed, such as the Thunderstore Mod Manager. Otherwise use the zip download links instead.

Upload date Version number Downloads Download link  
2021-5-18 1.4.2 287 Version 1.4.2 Install
2021-5-18 1.4.1 116 Version 1.4.1 Install
2021-5-16 1.4.0 2062 Version 1.4.0 Install
2021-5-11 1.3.7 3684 Version 1.3.7 Install
2021-5-10 1.3.5 2204 Version 1.3.5 Install
2021-5-9 1.3.4 1559 Version 1.3.4 Install
2021-5-7 1.3.3 2259 Version 1.3.3 Install
2021-5-6 1.3.2 724 Version 1.3.2 Install
2021-4-30 1.3.1 3928 Version 1.3.1 Install
2021-4-25 1.3.0 3791 Version 1.3.0 Install
2021-4-24 1.2.9 459 Version 1.2.9 Install
2021-4-22 1.2.8 2385 Version 1.2.8 Install
2021-4-21 1.2.7 1141 Version 1.2.7 Install
2021-4-20 1.2.6 1568 Version 1.2.6 Install
2021-4-20 1.2.5 470 Version 1.2.5 Install
2021-4-19 1.2.4 1483 Version 1.2.4 Install
2021-4-18 1.2.3 961 Version 1.2.3 Install
2021-4-18 1.2.2 64 Version 1.2.2 Install
2021-4-18 1.2.1 611 Version 1.2.1 Install
2021-4-18 1.2.0 31 Version 1.2.0 Install
2021-4-17 1.1.1 1533 Version 1.1.1 Install
2021-4-4 1.1.0 3522 Version 1.1.0 Install
2021-3-25 1.0.5 1693 Version 1.0.5 Install
2021-3-25 1.0.4 265 Version 1.0.4 Install
2021-3-25 1.0.3 26 Version 1.0.3 Install
2021-3-25 1.0.2 20 Version 1.0.2 Install
2021-3-25 1.0.1 15 Version 1.0.1 Install
2021-3-25 1.0.0 20 Version 1.0.0 Install