The Magnum Opus

The Magnum Opus is the term alchemists used to describe a "perfect creation". In this case, the Vanilla experience was pushed to perfection, to it's Magnum Opus.

With this modpack installed, you can expect your usual Minecraft experience boosted to greater levels without exaggerating on the new content by using 100+ amazing mods!

When first entering your world, you'll notice a drastic change in the terrain provided, with denser forests, deeper rivers, bigger mountains and much more! But don't think you'll be alone in this vast world; New and unique wildlife roam the countless landscapes! However, be careful, as more terrifying monsters, crawling from the caverns below, falling from the infinite sky or roaming the fields, want to kill you! And don't think only the present matters, within your world lies innumerous ruins, castles, dungeons and towers for you to explore, loot and uncover the secrets of the past. 
The Nether and The End were also affected by the modpack, expanding and making the Nether even more challenging. However, you'll for certain notice the now filled-with-life End dimension! Encounter the strange lifeforms inhabiting the grim End Islands and use them to become even stronger.
To balance your newfound strength, the game difficulty has increased with the new creatures and new progressive difficulty system.
Don't forget about the subtle but wonderful quality of life tweaks to make your experience as smooth as it can be!

What are you waiting for?

Note that I do NOT own ANY of the mods and resource packs used in the modpack, all credits go to the original creators of each mod and resource packs.
Please note that some features of the modpack require OptiFine that's NOT included in the modpack. Feel free to download and add manually or use something else of your preference.

 
Check out the mods included below: 

Additional Structures
Advancement Plaques
Alex's Mobs
AmbientSounds 5
Amplified Nether
Another Furniture
AppleSkin
Aquatic Torches
Architectury API
Areas
Artifacts
Auditory
AutoRegLib
Axes Are Weapons
Balm
Better Advancements
Better Combat
Better Third Person
Better Villages
Blueprint
Carry On
Citadel
Cloth Config API
Clumps
Collective
Configured
Comforts
Corail Woodcutter
CorgiLib
CoroUtil
CreativeCore
CuriousAPI
Diagonal Fences
Domestication Innovation
Dungeon Crawl
Easy Anvils
Easy Magic
Eating Animation
Ecologics
Effective
End's Phantasm
Enhanced Celestials
EnhancedVisuals

Everlasting Skins
Epic Knights: Shields, Armor and Weapons
Explorer's Compass
Falling Leaves (in case of the leaves not rendering, try to refresh the resource packs)
Farmer's Delight
Farsighted Mobs
Fast Leaf Decay
Friends&Foes
Galosphere

Galosphere Delight
Golems Are Friends Not Fodder
GraveStone Mod
Human Companions
Iceberg
Immersive Armors
Immersive Weathering
InsaneLib
Inventory Totem
Just Enough Items
Let Me Despawn
Library Ferret
Majrusz Library
Majrusz's Progressive Difficulty
Monster Plus
More Mob Variants
Music Player
Nature's Compass
Not Enough Animations
playerAnimator
Presence Footsteps
Puzzles Lib
Quark
ReBlured
Replay for Forge Reborn
Repurposed Structures
Sapience
Savage & Ravage
Serene Seasons
Sophisticated Backpacks
Sophisticated Core
Soul Fire'd
Sound Physics Remastered
Structory
Structory: Towers
SwingThroughGrass
TerraBlender
The Lost Castle
Time Control
Towns and Towers
U Team Core
Visual Workbench
Visuality: Reforged
Waystones
Wildfire's Female Gender Mod
William Wythers' Overhauled Overworld (the biomes added by this mod are disabled, but you can change that in the configurations of the mod)
Wooden Shears
Xaero's Minimap
Xaero's World Map
YUNG's API
YUNG's Better Desert Temples
YUNG's Better Dungeons
YUNG's Better Mineshafts
YUNG's Better Nether Fortresses
YUNG's Better Ocean Monuments
YUNG's Better Strongholds
YUNG's Better Witch Huts
YUNG's Bridges
YUNG's Extras
Zombie Awareness

 There's also some resource packs, check them out: