Misanthrope Gas Engine
by kitkatcae
Misanthrope Gas Engine replaces the air in Minecraft worlds with a simulated atmosphere made of several gases, and the mob-breathing rules depend on what each block contains.
What it does
Each block of air is swapped for a block called mge:atmosphere, which stores its gas mix in NBT data. Gases spread to the 26 neighboring positions, gain or lose weight with temperature, and drift up or down along air currents. Pressure thins with altitude, so higher places hold a sparser atmosphere, and each dimension sets its own default gases.
Whether a player or other entity can breathe depends on the gas in the atmosphere block they occupy, and the mod also reworks breathing for mobs that do not live in water. The engine is a Forge mod for 1.20.1 – 1.20.6, released under the Creative Commons Attribution Non Commercial 4.0 license, which is not open source; its source code is public. It needs Cold Sweat, Pehkui, Photon Editor and Thermodynamica, and Beyond Oxygen is optional.
Key features
Gas simulation
Gas pressure and weight are tracked per block, so the mix in one area can differ from its neighbors.
Thinning atmosphere
The air becomes thinner at higher altitudes, which changes how far a player can go before running short of breath.
Air currents
Warm gas rises and cool gas sinks, moving the atmosphere through the world over time.
Breathing for mobs
Breathing is also applied to non-aquatic mobs, not only to players.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 4
Optional 2
Use cases
Survival with a harsh sky
Players who want air to matter in a survival world can use the gas rules to make high places and sealed areas dangerous.
Who it’s for: Players who want the air itself to be part of a survival or adventure world, and server owners who accept a shared simulated atmosphere. Because it is client and server, the server and every player need the mod, and the mod has to run alongside its required dependencies.
Questions
Does Misanthrope Gas Engine need Cold Sweat?
Does the server need the mod?
Which game versions does the mod support?
Does the mod work with other dimension mods?
In the catalog
Misanthrope Gas Engine is one of 7,555 Cursed mods on ModsFinder, and one of 3,426 Cursed mods for Forge. 11,154 mods support Minecraft 1.20.6.
Similar mods
What the author says
the misanthrope gas engine replaces minecraft air with a new block called mge:atmosphere, the atmosphere blocks do real gas simulation inside of it's NBT data, with gasses spreading to their 26 neighbors, gasses have weight and move up or down in air currents, and based on temperature, this has compatibility with…
Official listing
- Modrinth page
- modrinth.com/mod/mge
- Owner
- kitkatcae
- Published
- 2026-04-16
- Updated on Modrinth
- 2026-06-18
- Facts verified
- 2026-10-15