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SimulacrumAdditions

Large content addition to Simulacrum. Adds 80+ Augments, a way to end Simulacrum runs, guaranteed super boss wave, Simulacrum Artifacts that add more Stage varitey or Drones, and a lot of extras for the gamemode.

TweaksSurvivors of the VoidGamemodes
Latest version
2.6.6
Downloads
310.6k
Depended on by
40+ projects
Rating
22
Filed under
Tweaks, Survivors of the Void
Updated
9 mo ago
Available on
Thunderstore

Download

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

2.6.6release26 Dec 2025

Wolfo-SimulacrumAdditions-2.6.6.zip · 0.4 MB

Download latest
Older versions4
  • 2.6.513 Dec 20250.4 MBGet
  • 2.6.49 Dec 20250.4 MBGet
  • 2.6.35 Dec 20250.4 MBGet
  • 2.6.24 Dec 20250.4 MBGet

Frequently asked

How do I install SimulacrumAdditions?

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 SimulacrumAdditions 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 SimulacrumAdditions 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 2.6.6, the newest one. An older release may need different things.

Needs 7

Install these first or it will not load.

  • R2API Items
  • Risk Of Options
  • RiskofThunder-HookGenPatcher(not indexed yet)
  • RiskofThunder-R2API_Prefab(not indexed yet)
  • RiskofThunder-R2API_Networking(not indexed yet)
  • RiskofThunder-R2API_Language(not indexed yet)
  • WolfFixes

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.