Thin Air
by Fuzs
Thin Air makes breathing harder the further a player goes below Y=0 or above Y=128, and it drains air in the Nether and End.
What it does
Air quality falls off outside the normal height band. Deep underground and high in the sky, the air supply runs down slowly, and in the Nether it drains too, while the End has no air at all. Players who explore caves or climb tall mountains need a supply of breathable air, and protection comes from Potions of Free Breathing, Respirators and Air Bladders. Soul Fire, Soul Torches and Soul Campfires create pockets of safer air, and a Bottle of Soulfire restores the lungs.
The mod runs on Fabric, Forge and NeoForge for 1.19.2 – 1.20.4, with builds for 1.19.2, 1.20.1 and 1.20.4. It needs Fabric API, Forge Config API Port and Puzzles Lib, and the environment is client and server, so the server and every player need the mod. Curios API, Forge Config Screens and Trinkets are optional, and Cardinal Components API is bundled inside the jar. The code is under the MIT License and is open source.
Key features
Height-based air loss
Breathing gets harder away from sea level, and the air supply runs down below Y=0 and above Y=128.
Safety Lanterns
Safety Lanterns change color in the inventory and in the world to show the air quality nearby, and they can be dyed.
Soul-based air sources
Soul Fire, Soul Torches and Soul Campfires make pockets of safer air, and a Bottle of Soulfire restores air.
Drowned attacks
Drowned attacks take air from the player, so fights underground carry an added risk.
Torch particles
Right-clicking a torch makes it emit particles, which can mark the way out of a cave.
Gallery
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 3
Optional 2
Embedded 1
Required by 1 mod
Use cases
Cave and mountain exploration
Players carry a supply of air or protective items before going deep into caves or high onto mountain peaks.
Nether and End trips
Travel to the Nether and End needs preparation, since air drains in the Nether and is absent in the End.
Who it’s for: Players who want survival to include limits on breathing in deep caves, high peaks and other dimensions. Server owners who run a survival world with the mod gain the same air rules for every player.
Questions
Does Thin Air need Fabric API?
Does the server need Thin Air?
Can the settings be changed in game?
In the catalog
Thin Air is one of 19,031 Adventure mods on ModsFinder, and one of 10,052 Adventure mods for Fabric. 13,907 mods support Minecraft 1.20.4.
More from Fuzs
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What the author says
Thin Air introduces hardcore air mechanics, making it harder and harder to breath the further you move away from the world's sea level. Both adventuring in caves as well as climbing tall moutains have suddently become quite dangerous if you don't bring a sufficient air supply! And don't even think of travelling to…
Official listing
- Modrinth page
- modrinth.com/mod/thin-air
- Owner
- Fuzs
- Published
- 2023-06-27
- Updated on Modrinth
- 2025-07-17
- Facts verified
- 2026-10-15