ThinAir: ReLived
🟡 Updated this year⚠️ Install Order · 2 steps
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🔍 Analysis
- 👍 0.6% endorsement rate
- 🏆 #51 of 57 neoforge mods in this game by downloads
📋 About This Mod
# Thin Air — NeoForge 1.21.1 Port A faithful NeoForge port of (https://modrinth.com/mod/thin-air). The air is not always breathable deep underground and in other dimensions. The original mod is (https://modrinth.com/mod/thin-air/versions) (last release: Minecraft 1.20.4). This fork brings it forward to **Minecraft 1.21.1** on NeoForge while staying close to the upstream design (not a ground-up rewrite) with some features added. > ⚠️ Please report bugs for this port **only** in (https://github.com/kgbcupcake/ThinAir-ReLived/issues). Do not contact fuzs about issues specific to this port. --- ## What's Different - **NeoForge-only**: Direct port of the 1.20.4 codebase and data, updated for NeoForge 1.21.1 APIs and datapack path changes (`recipe/`, `advancement/`, `loot_table/`, and so on). - **Server-authoritative config**: Settings live in `thinair-server.toml` under each world's `serverconfig/` folder, with an optional in-game config screen (Mods menu) via Cloth Config. - **Optional Curios**: Respirator uses the Curios head slot and Safety Lantern uses the Curios belt slot when (https://modrinth.com/mod/curios) is installed; the mod works without it. - **Optional Create integration**: Backtanks provide breathable air in yellow and red air when worn with a Diving Helmet (via (https://modrinth.com/mod/create)'s own equipment system, with an optional Curios back slot for the backtank itself); like Curios, none of this is required or bundled, the mod loads and works fine with neither installed. - **Work in progress**: Full parity testing is ongoing. --- ## Features - **Air quality levels**: Green, yellow, red, and blue air affect breathing and what equipment helps, by dimension and height. - **Safety Lantern**: Shows nearby air quality by color; can be dyed and scraped with an axe. - **Signal Torch**: Right-click to emit particles (configurable). - **Respirator**: Protects against choking air (Curios head slot when available). - **Air Bladder** / **Reinforced Air Bladder**: Portable air refill; reinforced variant crafted with netherite and copies durability from the ingredient bladder. - **Bottle of Soulfire**: Emergency air restore in the Nether. - Advancements, recipes, loot injections, drowned air-drain behavior, chunk air-quality sync, and English / Russian / Chinese lang files. ### Blocks - **Safety Lantern**: shows nearby air quality by color; can be dyed and scraped with an axe - **Signal Torch**: right-click to emit particles (configurable) ### Items - **Respirator**: protects against choking air (Curios head slot when available) - **Air Bladder** / **Reinforced Air Bladder**: portable air refill (reinforced recipe copies bladder durability) - **Bottle of Soulfire**: emergency air restore in the Nether ### Advancements - **Air Bladder**: use an Air Bladder to refill your air supply on the go - **Blue Air**: breathe the life force given off by Soul Fire to maintain your air (but not increase it!) - **Disco Lantern**: use a piece of Dye to manually change the color of a Safety Lamp (you can scrape the color off with an axe) - **Respirator**: protect yourself from choking air with something like a Respirator - **Safety Lantern**: use a Safety Lantern to check the air quality around you - **Signal Torch**: right-click a torch to make it spew particles, perhaps to signal the exit of a cave - **Soulfire Bottle**: restore your lungs with the souls trapped in a Bottle of Soulfire - **Water Breathing**: breathe freely where there is no air at all ## Known limitations Work still in progress compared to the original 1.20.4 release: - Full parity testing (multiplayer, loot, advancements, worldgen-placed air providers) is ongoing --- ## Technical Info | Dependency | Version | Notes | | ------------ | ---------------- | --------------------------------------------------------------------- | | NeoForge | 1.21.1 | Required | | Java | 21 | Required | | (https://modrinth.com/mod/curios) | 9.5.1+1.21.1 | Optional: respirator head slot, belt lantern, Curios rendering | | (https://modrinth.com/mod/create) | 6.0.10-280 | Optional: backtank breathable air via Diving Helmet | | (https://modrinth.com/mod/cloth-config) | 15.0.140 | Recommended: in-game config screen from the Mods menu; otherwise edit `serverconfig/thinair-server.toml` | ## Installation 1. Install (https://neoforged.net/) for Minecraft 1.21.1. 2. Download or build `thinair-*.jar` from (https://github.com/kgbcupcake/ThinAir-ReLived/releases). 3. Drop the mod `.jar` into your `mods/` folder. 4. Optionally install (https://modrinth.com/mod/curios) for respirator/lantern slo
# Thin Air — NeoForge 1. 21. 1 Port
A faithful NeoForge port of (https://modrinth.com/mod/thin-air). The air is not always breathable deep underground and in other dimensions.
The original mod is (https://modrinth.com/mod/thin-air/versions) (last release: Minecraft 1. 20. 4). This fork brings it forward to Minecraft 1. 21. 1 on NeoForge while staying close to the upstream design (not a ground-up rewrite) with some features added.
> ⚠️ Please report bugs for this port only in (https://github.com/kgbcupcake/ThinAir-ReLived/issues). Do not contact fuzs about issues specific to this port.
## What's Different
- NeoForge-only: Direct port of the 1. 20. 4 codebase and data, updated for NeoForge 1. 21. 1 APIs and datapack path changes (`recipe/`, `advancement/`, `loot_table/`, and so on).
- Server-authoritative config: Settings live in `thinair-server.toml` under each world's `serverconfig/` folder, with an optional in-game config screen (Mods menu) via Cloth Config.
- Optional Curios: Respirator uses the Curios head slot and Safety Lantern uses the Curios belt slot when (https://modrinth.com/mod/curios) is installed; the mod works without it.
- Optional Create integration: Backtanks provide breathable air in yellow and red air when worn with a Diving Helmet (via (https://modrinth.com/mod/create)'s own equipment system, with an optional Curios back slot for the backtank itself); like Curios, none of this is required or bundled, the mod loads and works fine with neither installed.
- Work in progress: Full parity testing is ongoing.
## Features
- Air quality levels: Green, yellow, red, and blue air affect breathing and what equipment helps, by dimension and height.
- Safety Lantern: Shows nearby air quality by color; can be dyed and scraped with an axe.
- Signal Torch: Right-click to emit particles (configurable).
- Respirator: Protects against choking air (Curios head slot when available).
- Air Bladder / Reinforced Air Bladder: Portable air refill; reinforced variant crafted with netherite and copies durability from the ingredient bladder.
- Bottle of Soulfire: Emergency air restore in the Nether.
- Advancements, recipes, loot injections, drowned air-drain behavior, chunk air-quality sync, and English / Russian / Chinese lang files.
- Safety Lantern: shows nearby air quality by color; can be dyed and scraped with an axe
- Signal Torch: right-click to emit particles (configurable)
- Respirator: protects against choking air (Curios head slot when available)
- Air Bladder / Reinforced Air Bladder: portable air refill (reinforced recipe copies bladder durability)
- Bottle of Soulfire: emergency air restore in the Nether
### Advancements
- Air Bladder: use an Air Bladder to refill your air supply on the go
- Blue Air: breathe the life force given off by Soul Fire to maintain your air (but not increase it!)
- Disco Lantern: use a piece of Dye to manually change the color of a Safety Lamp (you can scrape the color off with an axe)
- Respirator: protect yourself from choking air with something like a Respirator
- Safety Lantern: use a Safety Lantern to check the air quality around you
- Signal Torch: right-click a torch to make it spew particles, perhaps to signal the exit of a cave
- Soulfire Bottle: restore your lungs with the souls trapped in a Bottle of Soulfire
- Water Breathing: breathe freely where there is no air at all
## Known limitations
Work still in progress compared to the original 1. 20. 4 release:
- Full parity testing (multiplayer, loot, advancements, worldgen-placed air providers) is ongoing
- --
- ## Technical Info
| Dependency | Version | Notes | | ------------ | ---------------- | --------------------------------------------------------------------- | | NeoForge | 1. 21. 1 | Required | | Java | 21 | Required | | (https://modrinth.com/mod/curios) | 9. 5. 1+1. 21. 1 | Optional: respirator head slot, belt lantern, Curios rendering | | (https://modrinth.com/mod/create) | 6. 0. 10-280 | Optional: backtank breathable air via Diving Helmet | | (https://modrinth.com/mod/cloth-config) | 15. 0. 140 | Recommended: in-game config screen from the Mods menu; otherwise edit `serverconfig/thinair-server.toml` |
## Installation
1. Install (https://neoforged.net/) for Minecraft 1. 21. 1. 2. Download or build `thinair-*.jar` from (https://github.com/kgbcupcake/ThinAir-ReLived/releases). 3. Drop the mod `.jar` into your `mods/` folder. 4. Optionally install (https://modrinth.com/mod/curios) for respirator/lantern slo
📊 Mod Details
- Game
- Minecraft Mods
- Author
- kgbcupcake
- Version
- 1.0.5
- Downloads
- 1,260
- Endorsements
- 8
- Category
- neoforge
- Created
- 6/11/2026
- Updated
- 8/1/2026
- Game Versions
- 1.21.1
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❓ Frequently Asked Questions
Which Minecraft Mods versions does ThinAir: ReLived support?
The author lists 1.21.1. Other versions may work but are untested by the author.
What is the latest version of ThinAir: ReLived?
Version 1.0.5, published 2026-08-01 with 1,260 downloads recorded at the source.
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