Corpse of the Shattered Moon is a no_moon.jar modpack that backports most of minecrafts modern features to 1.20.1, and adds some extra ambience to add to no_moon.jar.

Video Showcase:

Features:

Nearly a full backport of every modern minecraft feature:

Copper Age Backport (link):

• Copper Golems (made by placing a pumpkin on a copper block)
• Copper tools, weapons, and armor
• Copper decoration blocks
• Wooden Shelves

Trial Chambers Backport (link):

• Trial Chambers spawn underground
  • Has full functionality with breezes, wind charges, ominous keys, etc.
  • Adds the mace and its associated enchantments

Spears Backport (link):

• Adds Spears
  • functions like vanilla minecraft spears

Potions Backport (link):

• adds the new potions with full functionality
  • Oozing pots will spawn a slime on death
  • Weaving pots will spawn a spider on death
  • Infestation pots have a 10% chance to spawn silverfish every instance of damage

Pale Garden Backport (link):

• adds all the Pale Oak and Resin related blocks and items
• adds The Creaking
• adds Eyeblossoms

(When you install the pack, Curseforge will tell you that you need to manually load the datapacks. This isn't true, the Global Packs mod will do it automatically)

(This pack contains no_moon.jar which can be incredibly destructive. Please read the no_moon.jar wiki for more info.)

no_moon.jar is a horror mod inspired by the Broken Script. It adds several entities to your world which center around a new Dimension known as the Core. 

Spoiler imgaes for the Mod:

Config Changes:

The no_moon.jar configs are slightly altared from default:

• Banning is turned off
• Less Particles mode is turned on
• Avg events per day is increased from 7 to 10

Server Side Horror (link):

Adds 19 horror events, mostly themed around Ambience and traps. This mod is very much so in the background of everything, and is configured to not take away from no_moon.jar as the main focus of the pack.

Coolkids no_moon Extension (link):

Adds 2 simple structures that act as abandoned bases of old players, their souls lost to time. The loot from these bases can be incredibly helpful against the horrors of this pack.

Rotten Flesh to Leather (link):

Very self explanatory, smelt rotten flesh in the furnace to turn it into leather. 

The Peeker (link):

A simple mod that adds an entity known as the Peeker. He won't make noise, won't attack, and simply observes from a distance... right?

The rest of the pack is the typical features of HyRise Vanilla+ modpacks:

• Appleskin HUD info
• Xp Clumps
• Connected Glass
• Corpse mod
• Dynamic Lights
• Just Zoom
• Villager leads
• Yung's structures