Rising Toxicity
Rising Toxicity adds a toxic fog that climbs over set in-game days, forcing players to explore the sky, use gas masks and survive the air below.
What it does
Toxic fog rises over time, and its height is set by default at 20 days. Once it reaches a player's position, unprotected exposure builds toxic air without mask damage at 100 percent. Gas masks prevent that exposure by consuming air, and the air tanks refill the mask's capacity. Masks also fog up over time, which reduces visibility and pushes players back toward the surface.
Hostile mobs are immune to the fog, as are Villagers, Wandering Traders and some other mobs. Passive mobs take damage from it, and non-immune mobs cannot spawn inside toxic fog. The mod is built to take advantage of Create Aeronautics, which is required and encourages flying bases. It works in multiplayer, and the environment is client and server, so the server and every player need it. Files are published for NeoForge only, for 1.21.1.
Key features
Rising toxic fog
A toxic fog climbs over a set number of in-game days, so the safe area shrinks as time passes.
Gas masks and air tanks
Masks block exposure while they hold air, and air tanks refill their capacity when the player has them.
Mob immunity and spawning
Hostile mobs, Villagers and Wandering Traders are immune, passive mobs take damage, and non-immune mobs cannot spawn in the fog.
Sky survival
Players are pushed to live in the sky and build flying bases above the fog, which is the play the mod centers on.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
FogRule is open source under the MIT License, client and server, and built for NeoForge 1.21.1, so it covers the same loader and version. SulphurUpdate is NeoForge only for 1.21.8, with All rights reserved, so it targets a later version. Void Fog is client-side only, with All rights reserved, and spans Forge and NeoForge across 1.9.4 – 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Rising Toxicity | NeoForge | 1.21.1 | Client and server | 2026-05-13 |
| FogRule | NeoForge | 1.21.1 | Client and server | 2026-08-04 |
| SulphurUpdate | NeoForge | 1.21.8 | Client and server | 2026-03-23 |
| Void Fog | Forge and NeoForge | 1.9.4 – 1.21.1 | Client-side only | 2024-11-03 |
Questions
Does Rising Toxicity need Create Aeronautics?
Does the server need Rising Toxicity?
Which Minecraft versions does Rising Toxicity support?
Does Rising Toxicity work in multiplayer?
In the catalog
Rising Toxicity is one of 7,555 Cursed mods on ModsFinder, and one of 2,801 Cursed mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from BananaMan0509
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What the author says
Rising Toxicity introduces a toxic fog that rises over a set period of in-game days, forcing players to take to the skys to survive. This mod was designed to take advantage of Create Aeronautics (Not Required) by encouraging flying bases.
Official listing
- Modrinth page
- modrinth.com/mod/rising-toxicity
- Owner
- BananaMan0509
- Published
- 2026-04-28
- Updated on Modrinth
- 2026-05-13
- Facts verified
- 2026-10-15
