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Thermal: ExtraMinecraft mod for 1.21.5

Add tiers of augments and new machines to Thermal Expansion!

client and servernewest supported 1.21.5TechnologyEquipmentDecoration
Latest version
3.3.1-1.20.1
Minecraft
1.16.5 to 1.21.5
Java
Java 21+
Loaders
NeoForge, Forge
Licence
MIT
Downloads
96.0k
Updated
5 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Thermal: Extra servers

One click and Thermal: Extra is installed with the right loader, on hardware built for it.

  • 1.21.5
  • 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 Thermal: Extra declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.5NeoForge, Forge21+declared25 Mar 2025
1.21.4NeoForge, Forge21+declared3 Dec 2024
1.21.3Forge, NeoForge21+declared23 Oct 2024
1.21.2NeoForge, Forge21+declared22 Oct 2024
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.21NeoForge, Forge21+declared13 Jun 2024
1.20.6NeoForge, Forge21+declared29 Apr 2024
1.20.5NeoForge, Forge21+declared23 Apr 2024
1.20.4NeoForge, Forge17+declared7 Dec 2023
1.20.3NeoForge, Forge17+declared4 Dec 2023
1.20.2Forge, NeoForge17+declared20 Sept 2023
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.18NeoForge, Forge17+declared30 Nov 2021
1.16.5NeoForge, Forge8+declared14 Jan 2021

Download

From Thermal: Extra’s own host. Nothing is re-hosted here.

All 32 releases
3.3.1-1.20.1release14 Apr 2026

ThermalExtra-3.3.1-1.20.1.jar · 1.6 MB · for 1.20.1

Download latest
c05e9cf19428…
Older versions24
  • 3.3.0-1.20.129 Oct 20251.20.11.6 MB7.0k downloads5248adddd0a9…Get
  • 3.2.9-1.20.121 Oct 20251.20.11.6 MB1.1k downloads3a04ba14e978…Get
  • 3.2.8-1.20.117 Oct 20251.20.11.3 MB254 downloads8d6d0e22435b…Get
  • 3.2.7-1.20.110 Sept 20251.20.11.3 MB16.1k downloads8361ad223ce2…Get
  • 3.2.6-1.20.111 Jun 20251.20.11.3 MB7.2k downloads6e799b213d4f…Get
  • 3.2.5-1.20.128 Apr 20251.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.51.3 MB9.9k downloadsfb79ff39bde7…Get
  • 3.2.4-1.20.110 Mar 20251.20.11.3 MB12.7k downloads2bf0f157ea8d…Get
  • 3.2.3-1.20.124 Jan 20251.20.11.3 MB7.3k downloads776ab971ccb8…Get
  • 3.2.2-1.20.131 Dec 20241.20.11.3 MB1.9k downloads629a3eb4fcc1…Get
  • 3.2.1-1.20.129 Nov 20241.20.11.3 MB3.2k downloads04067e5c88ed…Get
  • 3.2.0-1.20.110 Nov 20241.20.11.3 MB2.0k downloads250df348f828…Get
  • 3.1.9b-1.20.118 Oct 20241.20.11.3 MB767 downloadscc40d9e514c3…Get
  • 3.1.9-1.20.117 Oct 20241.20.11.3 MB105 downloads57484a50f439…Get
  • 3.1.8-1.20.116 Sept 20241.20.11.3 MB1.2k downloads30adb537beac…Get
  • 3.1.7-1.20.130 Aug 20241.20.11.3 MB668 downloadsac9c47b3abdd…Get
  • 3.1.6-1.20.126 Aug 20241.20.11.3 MB177 downloads2615f74ba064…Get
  • 3.1.5-1.20.126 Aug 20241.20.11.3 MB104 downloads6153d3d8a116…Get
  • 3.1.4-1.20.124 Aug 20241.20.11.3 MB181 downloadsadd5102562ea…Get
  • 3.1.3-1.20.123 Aug 20241.20.11.3 MB122 downloads0bd17f2ecfe9…Get
  • 3.1.2-1.20.116 Aug 20241.20.11.3 MB161 downloads6f22cf80e90b…Get
  • 3.1.1-1.20.116 Aug 20241.20.11.3 MB98 downloadsb989cb243fb1…Get
  • 3.1.0-1.20.115 Aug 20241.20.11.3 MB135 downloads76d2d81245a8…Get
  • 3.0.010 Jan 20241.180.4 MB153 downloadsf984c6744858…Get
  • 3.0.9-1.20.110 Jan 20241.20.10.4 MB15.2k downloads06f3d27c51e2…Get

Frequently asked

Does Thermal: Extra work on Minecraft 1.21.5?

Yes. 1.21.5 is the newest Minecraft version Thermal: Extra 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 Thermal: Extra support?

Everything the author has declared, from 1.16.5 up to 1.21.5. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Thermal: Extra 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 loader does Thermal: Extra need?

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

Which Java version do I need for Thermal: Extra?

On the newest Minecraft release it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Thermal: Extra under?

MIT, 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 Thermal: Extra?

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 Thermal: Extra safely?

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

Works on the same versions

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

GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.

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

Is this information wrong or missing something? .