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Invasive OptimizationsMinecraft mod for 1.21.1

Invasive optimizations for other mods. If you experience any issues, disable this mod first!

newest supported release 1.21.1Bug FixesPerformance
Latest version
Invasive Optimizations 1.0.26 for 1.21.1
Loader
NeoForge
Licence
not stated
Downloads
1.7M
Updated
11 d ago
Available on
CurseForge

Minecraft versions

Every version Invasive Optimizations declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge21+declared8 Aug 2024
1.21NeoForge21+declared13 Jun 2024

Download

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

Most recently published release

Invasive Optimizations 1.0.26 for 1.21.1release25 Oct 2026

invasiveopts-1.0.26.jar · 0.3 MB · for 1.21.1, 1.21 · NeoForge

Download this release
5d86d01e60c4…
Older versions24
  • Invasive Optimizations 1.0.25 for 1.21.117 Oct 20261.21.1, 1.210.3 MBd1b1c4ab5c93…Get
  • Invasive Optimizations 1.0.24 for 1.21.11 Sept 20261.21.1, 1.210.3 MBefb1202813fe…Get
  • Invasive Optimizations 1.0.23 for 1.21.12 Aug 20261.21.1, 1.210.3 MBb513a315f8db…Get
  • Invasive Optimizations 1.0.22 for 1.21.125 Jul 20261.21.1, 1.210.3 MB217 downloads795d7264112e…Get
  • Invasive Optimizations 1.0.21 for 1.21.122 Jul 20261.21.1, 1.210.3 MB193 downloadsbd8476a26c88…Get
  • Invasive Optimizations 1.0.20 for 1.21.122 Jul 20261.21.1, 1.210.2 MB30 downloads4c09b08995c8…Get
  • Invasive Optimizations 1.0.19 for 1.21.119 Jul 20261.21.1, 1.210.2 MB37 downloads4c3c82914b9e…Get
  • Invasive Optimizations 1.0.18 for 1.21.118 Jul 20261.21.1, 1.210.2 MB10 downloadsbfc84af437d1…Get
  • Invasive Optimizations 1.0.17 for 1.21.116 Jul 20261.21.1, 1.210.2 MB8 downloadsf01add8cbf1a…Get
  • Invasive Optimizations 1.0.16 for 1.21.19 Jul 20261.21.1, 1.210.2 MB20 downloadscb3feb7f42fb…Get
  • Invasive Optimizations 1.0.15 for 1.21.122 Jun 20261.21.1, 1.210.2 MB15 downloads7f26e7e37217…Get
  • Invasive Optimizations 1.0.14 for 1.21.121 May 20261.21.1, 1.210.2 MB17 downloads0ca838f336e7…Get
  • Invasive Optimizations 1.0.13 for 1.21.119 May 20261.21.1, 1.210.2 MB13 downloads2f1af24da24d…Get
  • Invasive Optimizations 1.0.11 for 1.21.118 May 20261.21.1, 1.2191 KB11 downloads21339c55a9e5…Get
  • Invasive Optimizations 1.0.10 for 1.21.17 May 20261.21.1, 1.2176 KB34 downloads96275a5548f2…Get
  • Invasive Optimizations 1.0.9 for 1.21.17 May 20261.21.1, 1.2171 KB443ce77745e1…Get
  • Invasive Optimizations 1.0.8 for 1.21.15 May 20261.21.1, 1.2170 KB588e19b6e7d6…Get
  • Invasive Optimizations 1.0.7 for 1.21.15 May 20261.21.1, 1.2170 KBe9ec58855864…Get
  • Invasive Optimizations 1.0.6 for 1.21.15 May 20261.21.1, 1.2167 KB1 downloada64f9ae10ef3…Get
  • Invasive Optimizations 1.0.5 for 1.21.14 May 20261.21.1, 1.2162 KB00e75a1564d4…Get
  • Invasive Optimizations 1.0.4 for 1.21.11 May 20261.21.1, 1.2161 KB321d7df702fa…Get
  • Invasive Optimizations 1.0.3 for 1.21.11 May 20261.21.1, 1.2167 KBb926718fcbdf…Get
  • Invasive Optimizations 1.0.2 for 1.21.11 May 20261.21.1, 1.2148 KBde5c1656ead1…Get
  • Invasive Optimizations 1.0.0 for 1.21.129 Apr 20261.21.1, 1.2136 KB1 download3c66e4c86f80…Get

Frequently asked

Does Invasive Optimizations work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Invasive Optimizations declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Invasive Optimizations support?

Everything the author has declared, from 1.21 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Invasive Optimizations support?

NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Invasive Optimizations?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

How do I install Invasive Optimizations?

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

Where do I download Invasive Optimizations safely?

Start with the author's page on CurseForge, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Details from CurseForge, where the author last updated it on 25 Oct 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .