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CurseForge · Minecraft mod
HeatWave
This mod makes Minecraft's own temperature system to cause players to take heat damage in extremely hot biomes and dimensions. Heat damage can be prevented by wearing a helmet, providing a simple way to protect yourself from extreme temperatures.
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which HeatWave release should I use?
Latest stable file heatwave-1.5.2-neoforge-1.21.1.jar
Game version 1.21.1
Loader NeoForge
heatwave-1.5.2-neoforge-1.21.1.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is HeatWave required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source does not explicitly classify this release as client-only or server-only.
What else does heatwave-1.5.2-neoforge-1.21.1.jar need?
heatwave-1.5.2-neoforge-1.21.1.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add HeatWave without breaking your instance.
Built for heatwave-1.5.2-neoforge-1.21.1.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use heatwave-1.5.2-neoforge-1.21.1.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside heatwave-1.5.2-neoforge-1.21.1.jar. It opens that exact file at the source.
About this project
What does HeatWave add?
This mod expands Minecraft’s own temperature system to make extremely hot biomes and dimensions dangerous to players. When the temperature is high enough, exposed players will gradually take heat damage.
Features
Extreme Heat: Biomes with a temperature above 2.0 will cause players to suffer from heat damage.
Heat Protection: Stay protected from the heat by hiding under trees, buildings, or inside caves, or simply by wearing a helmet.
Helmets: Most helmets can protect you from the heat, but chainmail helmets do not provide protection.
Fast Heat Ticks, Low Damage: Heat damage is applied frequently, but each hit deals very little damage. An exposed player will take a long time to die, giving you plenty of time to find shelter.
Spawn Prevention: An annoying spawn-prevention system prevents the world from spawning you at night when the spawn location is in an extremely hot biome.
Peaceful Mode: The heat damage system is disabled on Peaceful difficulty.
Survive the heat, find shelter, and don't forget your helmet!
Project description from CurseForge.
Pick your setup
HeatWave by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
HeatWave versions and loaders
heatwave-1.5.2-neoforge-1.21.1.jar
21 Aug 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · NeoForge setup 1.21.1NeoForge release
Looking for an older file? The official CurseForge project page is in Resources.
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