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Insane's Survival Overhaul (aka IguanaTweaks Reborn)Minecraft mod for 1.21.1

Overhaul survival with many changes to existing mechanics. Weapon rebalance, and much more

client and servernewest supported release 1.21.1AdventureEquipmentGame MechanicsFood
Latest version
5.14.4.0
Loaders
NeoForge, Forge
Licence
LicenseRef-All-Rights-Reserved
Downloads
45.6k
Updated
9 h ago
Available on
Modrinth
Space NodeOur hosting

Host Insane's Survival Overhaul (aka IguanaTweaks Reborn) servers

One click and Insane's Survival Overhaul (aka IguanaTweaks Reborn) is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Insane's Survival Overhaul (aka IguanaTweaks Reborn) declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.19.4Forge, NeoForge17+declared14 Mar 2023
1.19.2Forge, NeoForge17+declared5 Aug 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.12.2Forge, NeoForge8+declared18 Sept 2017

Download

From Insane's Survival Overhaul (aka IguanaTweaks Reborn)’s own host. Nothing is re-hosted here.

Browse 88 indexed releases

Most recently published release

5.14.4.0release6 Nov 2026

insanesurvivaloverhaul-5.14.4.0.jar · 2.3 MB · for 1.21.1 · NeoForge

Download this release
213aeca56772…
Older versions24
  • 5.14.3.15 Nov 20261.21.12.3 MBeffdbed4b0cd…Get
  • 5.14.3.05 Nov 20261.21.12.3 MB489476423f3f…Get
  • 5.14.2.24 Nov 20261.21.12.3 MBfb9f37f69a17…Get
  • 5.14.2.13 Nov 20261.21.12.3 MBbbf1f2865606…Get
  • 5.14.2.03 Nov 20261.21.12.3 MB7d78e0c4c832…Get
  • 5.14.1.02 Nov 20261.21.12.3 MBd1befb3db744…Get
  • 5.14.0.0-beta29 Oct 20261.21.12.3 MBfeb44f306d4d…Get
  • 5.13.2.025 Oct 20261.21.12.2 MB0c8ed7d5c335…Get
  • 5.13.1.024 Oct 20261.21.12.2 MB4f17b20285fc…Get
  • 5.13.0.123 Oct 20261.21.12.2 MB21306c2bd8b6…Get
  • 5.13.0.018 Oct 20261.21.12.2 MB37ea0c524106…Get
  • 5.12.6.014 Oct 20261.21.12.2 MBeabcca2b0106…Get
  • 5.12.5.0-beta13 Oct 20261.21.12.2 MB7dc272df1e7c…Get
  • 5.12.4.0-alpha4 Oct 20261.21.12.2 MB12072315e96e…Get
  • 5.12.3.023 Sept 20261.21.12.2 MB531db357102f…Get
  • 5.12.2.022 Sept 20261.21.12.2 MBf07cf166878e…Get
  • 5.12.1.022 Sept 20261.21.12.2 MB96044f1640fd…Get
  • 5.12.0.021 Sept 20261.21.12.2 MBbb0c5aca755c…Get
  • 5.11.2.0-beta9 Sept 20261.21.12.2 MB82731f19e5fd…Get
  • 5.11.0.0-beta3 Sept 20261.21.12.2 MBf982a12d8f91…Get
  • 5.10.1.01 Sept 20261.21.12.1 MB035e3c3683bc…Get
  • 5.10.0.1-beta30 Aug 20261.21.12.1 MBedbb2865af79…Get
  • 5.10.0.0-beta29 Aug 20261.21.12.1 MBe41da36fcce8…Get
  • 5.9.0.023 Aug 20261.21.12.0 MBd66d37dfe867…Get

Dependencies

What Insane's Survival Overhaul (aka IguanaTweaks Reborn)declares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.

Frequently asked

Does Insane's Survival Overhaul (aka IguanaTweaks Reborn) work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Insane's Survival Overhaul (aka IguanaTweaks Reborn) 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 Insane's Survival Overhaul (aka IguanaTweaks Reborn) support?

Everything the author has declared, from 1.12.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Insane's Survival Overhaul (aka IguanaTweaks Reborn) on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Insane's Survival Overhaul (aka IguanaTweaks Reborn) support?

NeoForge, Forge. 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 Insane's Survival Overhaul (aka IguanaTweaks Reborn)?

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.

What does Insane's Survival Overhaul (aka IguanaTweaks Reborn) need to run?

It declares InsaneLib as required, so that has to be installed alongside it or it will not load. Each one is linked in the dependencies section above.

What licence is Insane's Survival Overhaul (aka IguanaTweaks Reborn) under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Insane's Survival Overhaul (aka IguanaTweaks Reborn)?

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 Insane's Survival Overhaul (aka IguanaTweaks Reborn) safely?

Start with the author's page on Modrinth, 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 Modrinth, where the author last updated it on 9 Nov 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? .