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mod

Aetherium

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

AudioItemsModsServer-side
Latest version
0.9.0
Downloads
1.4M
Depended on by
40+ projects
Rating
123
Filed under
Audio, Items
Updated
8 mo ago
Available on
Thunderstore

Download

From Aetherium’s own host. Nothing is re-hosted here.

0.9.0release5 Jan 2026

KomradeSpectre-Aetherium-0.9.0.zip · 57.3 MB

Download latest
Older versions4
  • 0.8.87 Jun 202557.2 MBGet
  • 0.8.77 Jun 202557.2 MBGet
  • 0.8.616 Mar 202557.2 MBGet
  • 0.8.514 Mar 202557.2 MBGet

Frequently asked

How do I install Aetherium?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Risk of Rain 2 all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Aetherium safely?

From the author's own page on Thunderstore, which is where the data here is synced from. IndexGG never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Which Risk of Rain 2 versions does Aetherium work on?

The author has not declared a supported version in the metadata we sync, so there is nothing here we can state as fact. Check the project's own page before installing it, and treat an old mod with no declared version as untested on modern Risk of Rain 2.

Dependencies

From release 0.9.0, the newest one. An older release may need different things.

Needs 18

Install these first or it will not load.

Needed by 40

Removing this breaks every one of them.

Last checked 2 mo ago against Thunderstore. We do not host files and we do not republish descriptions; every download link points at the author’s own release.