This modpack includes a variety of changechanging features, and vanilla friendly tweaks. Also some horrifying entities to hide from. NOT RECOMMENDED to go in blind(unless you want to), research some mods as some can contain flashing lights and jumpscares. This modpack is best to play with friends and have a general idea of what's to come

Some mods include:

Quark: https://www.curseforge.com/minecraft/mc-mods/quark

Its a vanilla friendly mod that tweaks the game in a realistic way

Security Craft: https://www.curseforge.com/minecraft/mc-mods/security-craft

Adds many block and items to do with security (locked doors, cameras, etc)

Chisels & Bits: https://www.curseforge.com/minecraft/mc-mods/chisels-bits

Lets you add tiny details in blocks or on your builds

Gravestones: https://www.curseforge.com/minecraft/mc-mods/gravestone-mod

When you die, a gravestone contain your items will appear so you can recover items without them despawning

Origins (Forge): https://www.curseforge.com/minecraft/mc-mods/origins-forge

Adds a new challenge were you have set advantage, disadvantages and abilites

Origins ++: https://www.curseforge.com/minecraft/mc-mods/origins-plus-plus

Adds more orgins to choose from

Simple Weapons: https://www.curseforge.com/minecraft/mc-mods/simple-weapons-for-better-combat

Adds more weapons like spears and shortswords, is compatible with a couple other mods

These mods add more new content to the game, like new weapons, foods and game mechanics, and some are vanilla friendly, changing the game to make it more realistic.

Some Horror mods include:

The Nightmare.jar: https://www.curseforge.com/minecraft/mc-mods/the-nightmare-jar

Cave Dweller: https://www.curseforge.com/minecraft/mc-mods/cave-dweller-reimagined

Pale Hound: https://www.curseforge.com/minecraft/mc-mods/the-pale-hound

Siren Head: https://www.curseforge.com/minecraft/mc-mods/siren-head-the-arrival

Screaming Villager and Sheep: https://www.curseforge.com/minecraft/mc-mods/the-screaming-villager

The Man From the Fog: https://www.curseforge.com/minecraft/mc-mods/the-man-from-the-fog

The One Who Watches: https://www.curseforge.com/minecraft/mc-mods/the-one-who-watches

The Wendigo: https://www.9minecraft.net/the-wendigo-mod

And a couple more (don't want to ruin the suprise)

These mods are the monsters you have to survive against, best to do a bit of research, DON'T go in blind

And I add Sound Physics Remastered and Simple Voicechat to make funny moments with your friends