I think it couldn't be harder?

Mod pack which is extremely difficult, where you won't be safe anywhere. This mod pack is very cool, it adds a lot of real and difficult things. It gives you a great survival challenge, where almost everything kills. If you would like to test it, download it! and if you have any questions, write in the comments.

The greatest concentration when creating a mod package was a difficulty of the game. It gives the opportunity to discover new structures, adds a large number of bosses and mobs.

Mods

AppleCore (by squeek502)
Serene Seasons (by Forstride)
Basic Nether Ores (by cScotPlay)
First Aid (by ichttt)
Inventory Sorter (by cpw)
BetterNether (by paulevs)
CoralReef (by primetoxinz)
JurassiCraft (by lordcazsius)
Atum 2: Return to the Sands (by Shadowclaimer)
Mystical Agradditions (by BlakeBr0)
Shadowfacts' Forgelin (by ShadowfactsDev)
Rough Mobs 2 (by Lellson8)
Botania (by Vazkii)
Ruins (Structure Spawning System) (by atomicstrykergrumpy)
Bouncy Creepers (by vadis365)
Dynamic Lights (by atomicstrykergrumpy)
GottschCore (by gottsch)
Grue (by Shinoow)
Reskillable (by lanse505)
Deadly Monsters (by radoslawg)
ToroHealth Damage Indicators (by ToroCraft)
Waystones (by BlayTheNinth)
Realistic Torches (by Chaosyr)
Ding (by ohaiiChun)
Mob Spawner Control (by PyrofabTheModsmith)
Placebo (by Shadows_of_Fire)
iChunUtil (by ohaiiChun)
Back Tools (by ohaiiChun)
Placeable Items (by Ferdz_)
Hats (by ohaiiChun)
Realistic Terrain Generation (by WhichOnesPink)
Classic Bars (by tfarecnim)
Bookshelf (by DarkhaxDev)
Better Foliage (by octarine_noise)
Doomlike Dungeons (by JaredBGreat)
Pam's HarvestCraft (by pamharvestcraft)
Passive Aggression (by Kashdeya)
NetherEx (by LogicTechCorp)
Bloodmoon (by Lumien231)
Mo' Bends (by iwoplaza)
Tough As Nails (by TheAdubbz)
JustTheTips (by DeflatedPickle)
Tips (by DarkhaxDev)
Eerie Entities (by DarkhaxDev)
Vampirism - Become a vampire! (by maxanier)
Dungeon Tactics (by PegBeard)
Netherending Ores (by ic_trab)
Just a Few Fish (by Tmtravlr)
Ice and Fire: Dragons in a whole new light! (by alex1the1666)
AbyssalCraft (by Shinoow)
Spice of Life: Carrot Edition (by lordcazsius)
So Many Enchantments (by ShelterRin)
Ferdinand's Flowers (by c0_0ry)
MysticalLib (by EpicSquid319)
General Disasters (by general223)
The Spice of Life (by squeek502)
Additional Structures (by XxRexRaptorxX)
Trumpet Skeleton (by jamieswhiteshirt_)
Zombie Players (by Corosus)
OGDragon + (by GenDeathrow)
No Recipe Book (by Seneschal_Luwin)
Underground Biomes (by Kreezxil)
AmbientSounds 3 (by CreativeMD)
Inventory Tweaks (by Kobata)
Obfuscate (by MrCrayfish)
Corail Tombstone (by Corail_31)
Lycanites Mobs (by Lycanite)
Controlling (by Jaredlll08)
Better Title Screen (by Girafi)
Item Scroller (by masady)
Cooking for Blockheads (by BlayTheNinth)
Mo' Creatures (by DrZharky)
OreLib (by OreCruncher)
CompatSkills (by lanse505)
Mod Name Tooltip (by mezz)
Mo' Villages (by TheWeatherPony)
World Tooltips (by GenuineSounds)
End Metals (by jriwanek)
Primitive Crafting (by Tschipp)
AlcatrazCore (by AlcatrazEscapee)
Hardcore Darkness (by Lumien231)
GoG Skybox (by Vazkii)
Just Enough Items (JEI) (by mezz)
Progressive Bosses (by InsaneGames_)
Baubles (by Azanor13)
Special AI (by FatherToast)
Chunk-Pregenerator (by Speiger)
BetterFps (by Guichaguri)
MrCrayfish's Gun Mod (by MrCrayfish)
LibraryEx (by LogicTechCorp)
Mob Sunscreen (by Kreezxil)
Patchouli (by Vazkii)
GooglyEyes (by ohaiiChun)
Dungeons2 (by gottsch)
The Aether II (by GildedGames)
Guidebook (by gigaherz)
Cavern II (by kegare0127)
Mystical Agriculture (by BlakeBr0)
LLibrary (by _ForgeUser11902522)
Baby Mobs (by Furgle)
Damage Indicators Mod (by rich1051414)
Dragon Mounts 2 (by TheRPGAdventurer101)
Plants (by Shadows_of_Fire)
Roguelike Dungeons (by greymerktv)
Exact Spawn (by Gaz_)
Weather, Storms & Tornadoes (by Corosus)
CoroUtil (by Corosus)
Zombie Awareness (by Corosus)
Toast Control (by Shadows_of_Fire)
End: Reborn (by EleC0TroN)
DarknessLib (by Shinoow)
Dynamic Surroundings (by OreCruncher)
Dynamic Trees (by ferreusveritas)
Clumps (by Jaredlll08)
Magma Monsters (by Kashdeya)
Tumbleweed (by konwboj)
MMD OreSpawn (by jriwanek)
[ANGRY PIXEL] The Betweenlands (by oily_oli)
MMDLib (by MCModDev)
No Tree Punching (by AlcatrazEscapee)
Cucumber Library (by BlakeBr0)
Neat (by Vazkii)
NetherPortalFix (by BlayTheNinth)
Antique Atlas (by Hunternif)
Realistic Item Drops (by Funwayguy)
Mystical World (by EpicSquid319)
Gravestone mod - Graves (by nightkosh)
Better Animals Plus (by cybercat5555)
Survivalist (by gigaherz)

CrepyCraft

[ANGRY PIXEL] The Betweenlands

AbyssalCraft

Additional Structures

AlcatrazCore

AmbientSounds 6

Antique Atlas

AppleCore

Atum 2: Return to the Sands

Baby Mobs

Back Tools

Basic Nether Ores [Forge/Fabric]

Baubles

Better Animals Plus

Better Foliage

Better Title Screen

BetterFps

BetterNether

Bloodmoon

Bookshelf

Botania