Modpack:

This modpack is trying to make Minecraft more challenging/realistic

Modpack is adding thirst and temperature system to game

Custom world generation

Custom health and healing system

New mobs

Seasons, seasonal weather and seasonal crops

Modpack is changing lot of crafting recipes and "enchanting"

Modpack is oriented around Tinker's Construct

Requirements:

Modpack require 3+GB of RAM for smooth running

Modpack require Optifine mod (smoother FPS, Shaders, Dynamic lights)

Optifine download: https://www.optifine.net/downloads (download OptiFine 1.12.2 HD U F4)

How to install:

From CurseForge:

Tutorial video: https://www.youtube.com/watch?v=ANaiUwh90XU

From Twitch:

Tutorial video: https://www.youtube.com/watch?v=0kXVjP7Q7-8

Tutorials:

Day 1 tutorial:

Video: https://www.youtube.com/watch?v=3czMWN2L2EY&feature=youtu.be

Mods used in modpack:

Just Enough Items (JEI) (by mezz)
Realistic Torches (by Chaosyr)
Toast Control (by Shadows_of_Fire)
Better Foliage (by octarine_noise)
Winter Wonder Land (by cam72cam)
Mob Amputation (by ohaiiChun)
MTLib (by Jaredlll08)
Food Funk (by Stormwind99)
AppleSkin (by squeek502)
The Spice of Life (by squeek502)
TAN Campfire Spit (by WolfieWaffle)
OreLib (by OreCruncher)
AI Improvements (by DarkGuardsman)
MysticalLib (by EpicSquid319)
Dynamic Trees - Biomes O' Plenty Compat (by mangoose3039)
KleeSlabs (by BlayTheNinth)
Passable Leaves (by WhichOnesPink)
Farseek (by delvr)
Realistic Brewing Stand (by MJaroslav)
Sound Filters (by Tmtravlr)
CoroUtil (by Corosus)
Zombie Awareness (by Corosus)
Just a Few Fish (by Tmtravlr)
Fence Jumper (by TheRealp455w0rd)
SwingThroughGrass (by exidex)
Custom Main Menu (by Lumien231)
Antique Atlas (by Hunternif)
AppleCore (by squeek502)
Scarper (by 0x4323)
IguanaTweaks Reborn (by InsaneGames_)
Biomes O' Plenty (by Forstride)
Hunger Overhaul (by ProgWML6)
Chest Transporter (by cubex2)
Tinkers Construct (by mDiyo)
StepupFixer (by Aroma1997)
First Aid (by ichttt)
Dynamic Surroundings (by OreCruncher)
Simulated Nights (by Phylogeny)
TiffitLib (by tiffit_)
Hardcore ORE (by MCJediYoda)
Mantle (by mDiyo)
Clay WorldGen (by EwyBoy)
Streams (by delvr)
Puddles (by solis_nova123)
Resource Loader (by Lumien231)
Tough As Nails (by TheAdubbz)
CraftTweaker (by Jaredlll08)
Block Drops Tweaker (by TheAwesomeGem)
ItemPhysic Full (by CreativeMD)
No Recipe Book (by Seneschal_Luwin)
Construct's Armory (by TheIllusiveC4)
Better With Lib (BWM - Core) (by primetoxinz)
CodeChicken Lib 1.8.+ (by covers1624)
NetherPortalFix (by BlayTheNinth)
Mo' Creatures (by DrZharky)
ModTweaker (by Jaredlll08)
StepUp (by NotTooManyItems)
Blur (by tterrag1098)
Survivalist (by gigaherz)
Quark (by Vazkii_)
Multi Mine (by atomicstrykergrumpy)
Serene Seasons (by Forstride)
No Mob Spawning on Trees (by oldjunyi)
Dynamic Trees (by ferreusveritas)
Aroma1997Core (by Aroma1997)
Proportional Destruction Particles (by Phylogeny)
Hardcore Darkness (by Lumien231)
CreativeCore (by CreativeMD)
StaminaPlus (by BubbleTrouble14)
Tinkers' Survival (by wendall911)
Quark Oddities (by Vazkii_)
Material Changer (by Lellson8)
Better With Mods (by primetoxinz)
AutoRegLib (by Vazkii_)
Fast Leaf Decay (by olafskiii)
Corpse (by henkelmax)
Aqueducts (by BordListian)
iChunUtil (by ohaiiChun)
Real First Person 2 (by rejah_tavi)
MmmMmmMmmMmm (by bonusboni)
Shadowfacts' Forgelin (by ShadowfactsDev)
MineTweaker RecipeMaker (by DoubleDoorDev)
Realistic Cobwebs (by UpcraftLP)
Ocean Floor - Clay Sand and Dirt (by Lothrazar)
Wumple Util Library (by Stormwind99)
Tinkers' Tool Leveling (by bonusboni)
EnhancedVisuals (by CreativeMD)
Placebo (by Shadows_of_Fire)

HarderSurvival

AI Improvements

Antique Atlas

AppleCore

AppleSkin

Aqueducts

Aroma1997Core

AutoRegLib

Better Foliage

Better With Lib (BWM - Core)

Better With Mods

Biomes O' Plenty

Block Drops Tweaker

Blur

Chest Transporter

Clay WorldGen

CodeChicken Lib 1.8.+

Construct's Armory

CoroUtil

Corpse

CraftTweaker