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Alexs Caves: Fallout Edition
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Alexs Caves: Fallout Edition

Java mod listed for Minecraft 1.20. File opened and checked on 24 Sep 2026; downloads from the MC Java Mods app on Android.

by CrocThatLikesDinosaurs · on CurseForge

⬇ Download on CurseForge

The author built this one for Minecraft 1.20.1 on Forge. On other versions it may install and then do nothing.

Alexs Caves: Fallout Edition — screenshot 1Alexs Caves: Fallout Edition — screenshot 2Alexs Caves: Fallout Edition — screenshot 3Alexs Caves: Fallout Edition — screenshot 4Alexs Caves: Fallout Edition — screenshot 5

THIS MOD REQUIRES STRUCTURES TO BE ENABLED TO WORK PROPERLY

DO NOT REMOVE THE MOD AND PLAY WORLDS THAT USE THIS MOD, IT WILL RESULT IN CORRUPTION

This mod, as mentioned in the mod's summary, is an addon of Alex's Caves that turn a chunk of the overworld into an apocalyptic wasteland, utilizing the toxic caves, and several other alex's caves biome parts to create it.

This wasteland is a harsh climate, and survival is quite tough, but, if you are skilled enough, you can survive this wasteland.

What the mod adds:

The Toxic Wasteland biome, this takes up over 60% of the overworld, a highly irradiated biome that has fallen into a state of nuclear hell ever since the day of nuclear annihilation previously, reducing most of the world to this biome.

Some basics:

The water in the toxic wasteland is radioactive, entering it irradiates you

Some parts of the ground are made of irradiated dirt, these irradiate you if you walk upon them.

Even being outdoors for prolonged periods can result in adverse side effects.

The wildlife is very hostile compared to the regular overworld, and night-times near death sentences if you are out in the open.

Credit to Alex, creator of Alex's Caves for making this addon at all possible!

This mod has no dependancies other than Alex's Caves and Citadel

Credits to DevSnaxo for the mod thumbnail and irradiated dirt textures!

Quick facts

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

These come from our own check of the pack file, not from the source page.

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