ClimateCraft
Adds climate change mechanics. Building, mining, and smelting emit CO2, plants absorb it. Keep the environment in balance or suffer sea level rise, droughts, and wildfires!
- Loaders
- Fabric
- Downloads on Modrinth
- 675
- Followers on Modrinth
- 6
- versions
- 16
- Updated
- April 3, 2026Apr 3
- Published
- in 2026
At a glance
Install on the server only; players don't need it
Minecraft where your actions affect the climate!
Placing blocks, smelting, and other activities emit CO2, which the environment has a limited capability to absorb.
If the CO2 levels get too high, bad things happen.
THE SEA LEVEL RISES!
FIRES BREAK OUT!
PLANTS DIE FROM DROUGHT!
CORAL BLEACHES AND DIES
ICE CAPS MELT
... UNTIL THE POINT OF NO RETURN!
Mechanics
Most specific values are configurable in climate_config.json.
A note from attamatti: I need play testers! I'm still working to balance all the numbers for good gameplay.
For specifics see the FAQ here.
Carbon Flux
The environment is assumed to be at equilibrium. Placing green blocks or growing plants lowers the total, smelting, building, breaking blocks, and fires add to the total.
Effects of climate change
Sea level rise
As total CO2 crosses certain thresholds sea level rises by one block. Sea level rise is irreversible :(
Any plants inundated by the sea die and disappear.
Drought
As total CO2 increases and temperature rises plants begin to die off.
- Each leaf block has a chance to die and disappear.
- Each grass block has chance of turning into dirt (60%), packed dirt (25%), or dirt path (15%).
- Plants and crops of all kind have a chance of dying and turning into a dead bush.
Crop Failure
As total CO2 rises crops have an increasing chance to die at each growth stage
Wildfire
As total CO2 increases there is an increasing chance for a wildfire to occur. If a wildfire occurs a single fire block will appear on a random tree leaves block and an alert will appear in the HUD.
Failure to put out wildfires before they spread can lead to a cascading environmental disaster!
Coral Bleaching and Ice Melting
When certain thresholds are passed coral bleaches and dies.
| Threshold | Coral die off and Ice/snow loss |
|---|---|
| 1 | 25% |
| 2 | 50% |
| 4 | 50% |
| 4 | 100% |
The Apocalypse
If total CO2 gets too high there's no going back. Magma blocks, netherrack, lava, and coal blocks start to appear. They start fires and spew out CO2 in a deadly positive feedback cycle. Your word is probably toast at this point :(
Console commands
`climate setco2 : Set total emissions to n`
climate hud: Turn on/off on-screen display of CO2 and sea level
`climate threshold : View current and pending thresholds for various events. Choose drought, wildfire, ice, coral, or apocalypse`
climate log: Turn on/off verbose logging for debugging.
Requirements
Minecraft 1.21.11
Installation
- Install the Fabric Loader
- Put
climate-change-mod-1.0.0.jarandfabric-api-0.141.3+1.21.11.jarinminecraft/mods/(~Library/Application support/minecraft/modson mac) - Launch minecraft v1.21.11 with the Fabric Loader
FAQ
How to install ClimateCraft?
Install Fabric for your Minecraft version, download ClimateCraft for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does ClimateCraft support?
ClimateCraft has builds for Minecraft 1.21–1.21.11.
Is ClimateCraft needed on the server?
Server only — players don't need to install it
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All game mechanics mods →
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