KomradeSpectre-Aetherium icon


A mod that currently adds tons of all new items, equipment, artifacts, and more to ROR2! SOTV patch update!

Last updated a month ago
Total downloads 302059
Total rating 55 
Categories Mods Items Audio Enemies Artifacts Client-side Server-side
Dependency string KomradeSpectre-Aetherium-0.6.8
Dependants 78 other mods depend on this mod

This mod requires the following mods to function

bbepis-BepInExPack-5.4.1905 icon

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

Preferred version: 5.4.1905
tristanmcpherson-R2API-4.3.21 icon

A modding API for Risk of Rain 2

Preferred version: 4.3.21


What is Aetherium?

Aetherium is a variety pack mod for Risk of Rain 2 that adds in a wide range of items, equipment, artifacts, and more!

Most of the item ideas listed were sourced from the ideas channel on the official discord, and as such the ones that were I will list the person that came up with the idea next to them.

Discord: https://www.discord.gg/WNap5qcPf6

Icon Item Description Rarity Original Idea by
Feathered Plume Gain a temporary 7% speed boost upon taking damage that stacks 3 times for 5 seconds. (+3 stacks and +0.5 second duration per additional Feathered Plume.) White Ajarl
Nail Bomb Attacks that deal 120% damage or more release a shrapnel grenade that explodes for 20x30% of your damage (+50% more per stack). Enemies hit that launched a nail bomb are granted 2 second(s) of immunity to the effect. White Zeddy
Blood Soaked Shield Killing an enemy restores 10% max shield (+10% per stack hyperbolically.) The first of the stack of this item will grant 8% of your max health as shield on pickup. Green Kaboose
Engineers Toolbelt You have a 20% chance (+20% hyperbolically up to a maximum of 100% chance) to duplicate drones and turrets on purchase. Additionally, you have a 10% chance (+10% hyperbolically up to a maximum of 100% chance) to revive drones and turrets when they die. Green Insane (originally) Me (Modified)
Shark Teeth 25% of damage taken (+25% per stack hyperbolically) is distributed to you over 5 seconds as bleed damage. Green FancyFrenc
Shielding Core You gain 15 (+10 per stack) armor while BLUE shields are active. The first stack of this item will grant 8% of your max health as shield on pickup. Green NepNep
Blaster Sword At full health, most attacks will fire out a sword beam that has 200% of your damage (+50% per stack) when it explodes after having impaled an enemy for a short duration. Red Bord
Inspiring Drone Any bots you own gain a 50% boost to each of its stats based on yours (+50% per stack). Some bots gain more ammo for their attacks based on the bonus to their attack speed, and have their ammo replenished twice as fast per additional Inspiring Drone. Finally, if an inspired bot is too far away from you, it is teleported to you after a delay (40 seconds for Turrets, 30 seconds for Drones). Red Kaboose (original) Me (modification)
Witches Ring Hits that deal 500% damage or more will trigger On Kill effects. Upon success, the target hit is granted immunity to this effect for 10 seconds (-10% duration per stack, hyperbolically.) Red Me
Icon Equipment Description Type Original Idea by
Bell Totem On use, spawn an interactable bell totem at the chosen position. When activated, trigger a shockwave with a radius of 25m that stuns and sends enemies flying away from it. Additionally, any On Shrine Use effects will be activated. 2 second(s) between equipment uses, 1 second(s) between totem activations, and only one totem can be spawned per activator. Normal Ragon, modified slightly by me
Jar of Reshaping On activation, absorb projectiles in a 20m radius for 3 second(s). Upon success, fire all of the projectiles out of the jar upon next activation. The damage traits of each projectiles fired from the jar depends on the bullets you absorbed. After all the projectiles have been fired from the jar, it will need to cool down. Normal Me


Icon Name Description Type Original Idea by
Accursed Potion Every 30 seconds (reduced by 25% per stack) you are forced to drink a strange potion, sharing its effects with enemies in a 20m radius (+5m per stack) around you. Max: 8 buffs or debuffs can be applied at any time. Lunar Item Shadokuro
Alien Magnet Enemies hit by your attacks will be pulled towards you, starting at 6x force (+1 force multiplier, up to 10x total force. The effect is more noticeable on higher health enemies. Lunar Item Me
Heart of the Void On death, cause a void implosion with a radius of 15m (+7.5m per stack) that revives you if an enemy is killed by it BUT at 30% health (+5% per stack, max 99%) or lower, all kinds of healing are converted to damage. Lunar Item Hyperion_21
Unstable Design Every 30 seconds you are compelled to create a very 'FRIENDLY' Lunar Chimera, if one of your creations does not already exist. It has a 400% base damage boost (+100% per stack), a 10% base HP boost (+10% per stack), a 300% base attack speed boost, and finally a 24% base movement speed boost (+24% per stack). This monstrosity can level up from kills. Lunar Item SpookyBoogie
Weighted Anklet A collection of weights will slow your attack speed by 10% (to a minimum of 10% total) and your movement speed by 10% (to a minimum of 10% total). If you find a way to remove them, you are granted 0.25 attack speed flat scaling, 1 movement speed flat scaling, and 5% damage per removal. Additionally, removing an anklet grants you a stack of Limiter Release Dodge. Dodge will allow you to dodge one overlap, or blast attack before depleting. Once all stacks of dodge are depleted, they will need to recharge (10 seconds for the first stack, 5 seconds per each additional stack) before fully replenishing. Lunar Item Me
Zenith Accelerator Hitting enemies grants you a temporary attack speed buff that increases attack speed by 10% per buff stack linearly up to 300% (+100% per item stack linearly), but you lose up to 50% attack speed (+50% per item stack exponentially) the closer you are to 0 stacks of the buff. Lunar Item Ragon


Icon Artifact Description Original Idea by
Artifact of Leonids After every 60 seconds a meteor shower will occur that contains 6 wave(s) of meteors. Bord
Artifact of Progression Most enemies will evolve into stronger versions of themselves after a duration. Chen, Me
Artifact of Regression If a monster is in an evolved form, it will split into a group of its lesser form when it dies. Me
Artifact of the Journey Most stages will be randomly picked. After a certain amount, a primordial teleporter will be placed. Tons of People, Bord
Artifact of the Nightmare Non-boss enemies are granted 1-4 of the Lunar Heresy items when they spawn. Inspired by Hyperion_21
Artifact of the Tyrant Any time a route-ending boss spawns they will be given 1 random elite modifier. Me
Buff Icon Icon Elite Equipment Description Modifier Original Idea by
Bloody Fealty On use, teleport dash up to 10m in the direction you're going and gain slight invulnerability during the dash. Additionally, all of your attacks now cause bleeding. Sanguine Ragon, modified slightly by me.
Interactable Description Idea by
Buff Brazier A shrine that allows you to purchase flaming orbs containing a buff or a debuff. These orbs are consumed on the activator of the teleporter and spread their effects out into the teleporter event's radius. Me, Bord, Ragon


Upcoming Features

  • New Survivors (ETA: v0.7.0)
  • New Enemies.
  • More Elite Types.
  • Stages.
  • Faust, while basically complete indev still has some more work to be done, so it's disabled. (ETA: v0.6.8)


Known Bugs

  • Heart of the Void's new VFX has no sound.
  • Inspiring Drone display doesn't show up.


Planned Improvements

  • Make Unstable Design's spawn behavior configurable between individual per player or similar to halcyon seed.
  • Will be adding more custom VFX/SFX to the Jar of Reshaping now that I'm more familiar with effect networking.
  • Implement Active Dodging for Weighted Anklet.
  • Add BetterUI ItemStats module support for all items.  



  • Hopoo Games is at fault for this patch version. Aaaaaaaaaaaaaaaaa!!! Fixes the Weighted Anklet Limiter Release not having deprecatedTier set, but instead having tier set which causes it to show up in regular item pools.


  • Lots of bugfixes to make the mod compatible post-SOTV. Thanks to Bubbet, Time, and everyone else that contributed towards fixing Aetherium up.
  • New Heart of the Void explosion VFX. Sound is coming next update for it.
  • Modified Artifact of the Tyrant to affect all route-ending bosses instead of just Mithrix.


  • Fixed NRE in Buff Brazier that happened if you completed a teleporter event with an orb, but didn't have any next teleporter event (woops!).
  • Reduced default duration of Shark Teeth's damage spread to 2 seconds from 5, should synergize better with certain items and not screw up others as much.
  • Restored the missing Heart of the Void cell shader, didn't realize it was missing.
  • Fixed texture artefacts arising from using point sampling and normal compression (to save on mod size), but sadly we're gonna be 50mb or more for the moment.
  • Adjusted some descriptions in this readme to match ingame counterparts.
  • Fixed Jar of Reshaping's new effect on equipment drones. Shouldn't be sideways anymore.


  • Buff brazier update! Adds in a new interactable shrine that can appear with a variety of buffs/debuffs that will spread their effects out into the radius of the teleporter event of any map!
  • Fixes Bell Totem collision problems.
  • Fixes some model scaling problems.
  • Adds in a new Nail Bomb model (with new detonation effects! sfx next update), adds in new models for witches ring, and shielding core as well.
  • Adds a new effect for the jar of reshaping, sound coming next update.
  • Tons of other bugfixes.
  • New mod logo, headers, bits and bobs.


  • Adds Bell Totem, an equipment/interactable hybrid that spawns an interactable bell totem that throws enemies back and stuns them. It also triggers any On Shrine Use effects.
  • Adds an Entity State blacklist for Sanguine Elites that prevents the dash from interrupting specific attacks. Currently, it prevents the dash from cancelling Mithrix's item stealing and fist slam.
  • Hides Limiter Release item icon. I couldn't figure out an icon for the moment for it, and it has a buff anyway that shows you the count of Limiter Releases you have.


  • Adds Sanguine Elites. Elite buff icon was done by FOG, display model done by Ragon. The elite type grants abilities similar to the regular imps, including bleed on hit and a special dash ability. Players get invulnerability during the dash state but have a mandatory cooldown period between uses of the dash. AIs get the ability to chain dash if their enemy is too far away, but if they dash too often in too short of a period they get stunned.
  • Added Zenith Accelerator, a lunar that decreases your attack speed initially but you gain it back and then some with continuous hits. If it's too powerful, I'm going to add another downside. We'll see.
  • Fixed memory leak issue from using the tracer from Mul-T's nail. It doesn't clean up its smoke.
  • Added a temporary visual effect to Jar of Reshaping's opening.


  • Adds Artifact of the Journey. When enabled, stages will be chosen randomly. The dream seers in the bazaar will also be randomized. After every 5 (or stages per loop) amount of stages, a Primordial Teleporter will be placed.
  • Fixed Heart of the Void's overlay pulling from the wrong material. You can no longer be thick and veiny after reviving by it.
  • Fixed a rare culture specific issue regarding using "ToLower" to do a dictionary lookup. It's now culture invariant.


  • Fixed odd infinicombo Nail Bombing. It can no longer proc from a hit with 0 proc coefficient.
  • Fixed readme.


Special Thanks

  • BordListian - Co-creator of the mod, handles a lot of behind the scenes help with coding and testing.
  • Ragon - Provides new models, art, ideas, and a lot more continuously to the mod.
  • ThinkInvis - Indirect tutor that helped get the mod off the ground in the beginning with his API, TILER2.
  • Chen - Behind the scenes help with items/artifacts like Unstable Design, Inspiring Drone, and Regression.
  • KingEnderBrine - Item display help, and in that vein made a mod that simplified their creation.
  • Harb - Provided ILHooks that were used prior to make shield granting work before RecalcstatsAPI.
  • RyanP - For the base code (from his warden elites) of the Heart of the Void explosion.
  • Rob - Answered various coding questions, helped get item displays to render.
  • OkIGotIt (referencing Rico) - Shared a code snippet that helped me set up ItemDisplayRules.
  • Rico - The above, and for providing a patch fix for a Heart of the Void bug.
  • Rolo - Provided an example of projectile creation, used regularly as a basis of them in my mod.
  • GrimTheWanderer - Playtesting.
  • WaltzingPhantom - For providing alternative icon art for a few icons in the past.
  • Various ROR2 Modding Core Developers and Modders - Putting up with my questions through development.
  • 753 - Providing a crystallization shader for me to use in the future.
  • Lorc (Https://lorcblog.blogspot.com/) - Various game icons featured here and there in the mod.
  • FilterForge (Https://www.filterforge.com/) - Provided normals for old models, great filter library.
  • SOM - Providing an elite buff icon for Sanguine Elites.

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  
2022-6-2 0.6.8 14079 Version 0.6.8 Install
2022-6-2 0.6.7 70 Version 0.6.7 Install
2021-11-24 0.6.6 66025 Version 0.6.6 Install
2021-11-22 0.6.5 2655 Version 0.6.5 Install
2021-10-7 0.6.4 29113 Version 0.6.4 Install
2021-9-28 0.6.3 6913 Version 0.6.3 Install
2021-9-2 0.6.2 14710 Version 0.6.2 Install
2021-9-1 0.6.1 1406 Version 0.6.1 Install
2021-9-1 0.6.0 532 Version 0.6.0 Install
2021-8-14 0.5.10 9840 Version 0.5.10 Install
2021-8-11 0.5.9 3057 Version 0.5.9 Install
2021-5-19 0.5.8 32790 Version 0.5.8 Install
2021-5-19 0.5.7 227 Version 0.5.7 Install
2021-5-19 0.5.6 895 Version 0.5.6 Install
2021-5-19 0.5.5 166 Version 0.5.5 Install
2021-4-17 0.5.4 17866 Version 0.5.4 Install
2021-4-16 0.5.3 1508 Version 0.5.3 Install
2021-4-13 0.5.2 3034 Version 0.5.2 Install
2021-1-30 0.5.1 29101 Version 0.5.1 Install
2021-1-30 0.5.0 152 Version 0.5.0 Install
2020-12-28 0.4.7 14057 Version 0.4.7 Install
2020-12-28 0.4.6 129 Version 0.4.6 Install
2020-12-12 0.4.5 5897 Version 0.4.5 Install
2020-12-12 0.4.4 158 Version 0.4.4 Install
2020-12-12 0.4.3 139 Version 0.4.3 Install
2020-10-27 0.4.2 16806 Version 0.4.2 Install
2020-10-24 0.4.1 2336 Version 0.4.1 Install
2020-10-24 0.4.0 829 Version 0.4.0 Install
2020-10-16 0.3.1 2861 Version 0.3.1 Install
2020-10-15 0.3.0 754 Version 0.3.0 Install
2020-10-8 0.2.0 3440 Version 0.2.0 Install
2020-10-5 0.1.51 2361 Version 0.1.51 Install
2020-10-8 0.1.6 149 Version 0.1.6 Install
2020-10-4 0.1.5 629 Version 0.1.5 Install
2020-9-26 0.1.4 4084 Version 0.1.4 Install
2020-9-22 0.1.3 2088 Version 0.1.3 Install
2020-9-21 0.1.2 8353 Version 0.1.2 Install
2020-9-19 0.1.1 1942 Version 0.1.1 Install
2020-9-18 0.1.0 908 Version 0.1.0 Install