Ashen World
by snakymc
Ashen World is a NeoForge survival mod for 1.21.1 that adds radiation, mutations and contaminated areas to the wasteland theme of Minecraft worlds.
What it does
Radiation in Ashen World comes from several sources across the world, including contaminated environments, irradiated fluids and radioactive materials that mark certain biomes. Exposure builds up over time and does not fade away on its own, so a player has to manage it actively. As levels rise the effects grow more severe, and prolonged exposure can eventually lead to mutations. Radiation also causes permanent changes to the player rather than only sickness.
Mutations come in several types, each with its own effect, and some interact with one another in unexpected ways. Mutations act as simpler status effects that offer strong advantages while introducing new drawbacks, which changes how survival is approached. Crafting supplies include RadAway, which removes accumulated radiation, and Rad-X, which reduces exposure, alongside new equipment and consumables tied to the mod's content. Installation covers the server and each player's game. It is published for NeoForge only, with the 1.1.0 file targeting 1.21.1 and released 2026-09-03. The mod is licensed as All rights reserved and is not open source.
Key features
Radiation sources
Contaminated environments, dangerous fluids and radioactive materials expose players to rising levels of radiation.
Mutation system
Several mutation types with different effects can develop from prolonged exposure, and some combine in unexpected ways.
Radiation removal
RadAway clears accumulated radiation, while Rad-X lowers exposure, so players can manage their levels with items.
Wasteland exploration
New irradiated biomes and structures extend world generation and give players more reasons to explore.
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
The Wasteland is a NeoForge mod for 1.21.1 released under the MIT License, and its code is available to the public. Ashen World is licensed as All rights reserved and is not open source. Radiation Poisoning is built for 1.21.8 and is licensed as All rights reserved, so it does not cover the same version as Ashen World. AshenSky is a NeoForge mod for 1.21.1 under All rights reserved, with the same client and server environment as Ashen World.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Ashen World | NeoForge | 1.21.1 | Client and server | 2026-09-03 |
| The Wasteland | NeoForge | 1.21.1 | Client and server | 2026-06-24 |
| Radiation Poisoning | NeoForge | 1.21.8 | Client and server | 2026-07-24 |
| AshenSky | NeoForge | 1.21.1 | Client and server | 2026-10-10 |
Questions
Does Ashen World need to be installed on the server?
Which loader does Ashen World use?
Does radiation go away on its own?
In the catalog
Ashen World is one of 8,515 World generation mods on ModsFinder, and one of 4,175 World generation mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
Ashen World is a NeoForge mod focused on radiation, mutations, survival, and post-apocalyptic exploration in Minecraft. Radiation is a persistent threat throughout the world. Contaminated environments, dangerous fluids, radioactive materials, and irradiated biomes can expose players to increasing levels of radiation…
Official listing
- Modrinth page
- modrinth.com/mod/ashen-world
- Owner
- snakymc
- Published
- 2026-06-10
- Updated on Modrinth
- 2026-09-03
- Facts verified
- 2026-10-15