(NOTE: This is my first time making a mod for Minecraft and coding in Minecraft in general, so things may be a bit rough / buggy. I still hope this mod will be enjoyable regardless.)

Introduction

Long ago, a mysterious group of ancient builders were driven from the overworld they once called home. Fueled by desperation, the group tinkered with the concept of magic and their knowledge of blocks, they created the Scripture of Red, a magical being who aided them in the creation of a portal. Using the magic from the Grimoire, the builders were able to gain access to a new dimension that they might be able to call home. It was unknown if they builders survived or not once they entered into the portal...

How to access the dimension:

In order to enter the realm of darkness, you will need to seek out Grimoire Sanguine Iris, the book the ancient builders created

Once you have located the wretched book, you will need to engage in battle and obtain one of its Cursed Pages.

When you slay the cursed Grimoire and have obtained its pages, you will need to search for a village that the ancient builders have interacted with. Trade with the librarians to obtain a Mysterious Grimoire. Then, seek out one of the portals the group left to crumble in the overworld. Use the Mysterious Grimoire to repair the runes on the portal and check the chests.

Inside the dimension:

Once you enter into the dimension, you will need to be cautious. Creatures known as Shadelings lurk around every hill and tree. Gather the resources of this barren world and prepare to face off against one of the more powerful Shadelings that resides in a castle.

The Castle:

Once you have the castle, find the altar room within the structure and place the Runeric Block ontop of the Shadelight Blocks. Be prepared to battle against a fierce enemy.

TL;DR of this creation:

New dimension
New ores in the overworld
Hostile mobs
Armor + tools
Boss mobs
Building blocks
Recipes
Structures

NOTE: I give permission for this mod to be added to mod packs.

Tutorials

[German]

Goner's Shadelings