A Simple Horror-Modpack that Focues around The World Below Mod

What if the old Minecraft world never really disappeared?

Alpha Below is a Fabric and Forge mod for Minecraft 1.20.1 that adds a buried Alpha-style world beneath the modern Overworld. It’s dark, silent, empty, and frozen in time — not because it’s trying to be cheap horror, but because it feels like a place everyone left behind long ago.

The main mod is focused on atmosphere and exploration. No jumpscares, no loud monster gimmicks, no “dweller” nonsense. Just old terrain, heavy fog, strange landmarks, and signs that other players may have once been there.

Features

A custom Alpha dimension beneath the Overworld
Alpha-style terrain with old cave generation and configurable Far Lands
Three main biomes: Alpha Forest, Alpha Desert, and Alpha Snowy
Scattered landmarks like brick pyramids, obsidian walls, monoliths, campsites, and the dev house
Rare player remains that generate as if someone died there long ago
Floating chopped trees and other traces of previous activity
Alpha-style block and item texture swaps while inside the dimension
Classic C418-era music and harsher old-school lighting
Immersive Portals support for seamless world-below transitions
Optional Lost Voyager and 2Char systems, both disabled by default
Alpha-exclusive rubies, including ore, tools, armor, and recipes — JEI shows ruby crafting and smelting on Fabric and Forge
/alpha command for direct access
Mod Menu / Cloth Config (Fabric) or the in-game config screen (Forge) for settings: structure spawning, Far Lands distance, optional Alpha bedrock ceiling, optional day/night cycle in the Alpha dimension, and more