It is a man from the fog modpack that you can play alone or with friends. There are 3 books that you have to find on the map. book 1 and 2 i spelt some words wrong so dont pay attention to that. The 10 main mods are as follows.

The Man From The Fog: Which is a mod that has a scary man which is a tall black figure that he spawns 2 nights from the starting the game and hunts you down and kills you.
Corpse: Is a mod where if you die you body will stay on where you died and it will have all your stuff that you had before you died and the corpse will despawn after 5 minutes.
Xaero Minimap And World Map: which adds a mini map that you will have on the side of your screen and if you press "m" the main map will open. You can create temporary and perminant waypoints on said map.
Traveler's Backpack: Is a mod that adds a fully a cusomizable secondary invintory to store more items on your adventure.
The Graveyard: Is a mod that adds new spooky biomes, structures, mobs, and blocks to make your minecraft adventure more thrilling and challenging. Every structure, mob, and biome was built with a lot of attention to detail to create an immersive experience for your playthrough.
Biomes O' Plenty: is a complete overhaul to minecraft natural terrain generation that adds 80+ new biomes.
YUNG's Extras: is a mod that adds randomly spawning structures to enhance your playthrough and make it mroe imersive.
Simple Voice Chat: adds the option of proximity voice chat to speaks to you whoever adds.
Tips: Adds tips when your loading into your world and gives funny and helpful tips.
XP Tome: adds a book that you can store your XP in so you dont lose it upon death.

the man from the fog