Aetherium is a variety pack mod for Risk of Rain 2 that adds in a wide range of items, equipment, artifacts, and more! Alloyed Collective update!
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.
Currently developed by: KomradeSpectre.
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 32x30% 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. Dealing damage to enemies while bleeding restores a portion of the distributed damage. |
Green | FancyFrenc, Me |
 |
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). Bots gain a portion of your shield. Upon reaching low health, bots will kamikaze towards enemies to ensure their on-death explosion hits. |
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 15m 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 (dealing 150% damage). 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. |
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 |
