Tripwire Creates Caves focuses on cave survival. With mods that add extreme weather and cold, you are foced to survive the elements underground at the begining of your adventure. Grace period is added to gather recources quickly before going to the depths where it's warmer.

Primary mods are Create with addons & AE2.
Secondary are Primal Winter, Cold Sweat, Alex's Caves and YUNG's Cave mods that enhance underground exploring.
Many other mods to add to a better underground gameplay experience.

Alex's Caves (Unofficial Port) (by Raguto)
Alex's Caves Delight (by FixerLink1)
AppleSkin (by squeek502)
Applied Energistics 2 (by thetechnici4n)
Architectury API (by shedaniel)
BaguetteLib (by Project8gbDeRam)
Better Library (by Reggarf)
Building Wands (by nicguzzo)
Carry On (by Tschipp)
Citadel (Unofficial Port) (by Raguto)
Cloth Config API (Fabric/Forge/NeoForge) (by shedaniel)
Cold Sweat (by Mikul)
Collective (by Serilum)
Complementary Shaders - Reimagined (by EminGT)
CorgiLib (by Corgi_Taco)
Corpse (by henkelmax)
Corpse x Curios API Compat (by Project8gbDeRam)
Create (by simibubi)
Create Deco (by talrey)
Create: Applied Kinetics (by Forsteri123)
Create: Bells & Whistles (by a0a7)
Create: Better Villager (Fabric/Forge/NeoForge) (by Reggarf)
Create: Bits 'n' Bobs (by az_tech)
Create: Copycats+ (by Lysine)
Create: Design n' Decor (by Luna)
Create: Food (by average_anime)
Create: Framed (by DakotaPrideModding)
Create: Hypertubes (by Rokzin)
Create: Interiors (by a0a7)
Create: Mechanical Companion (by MarcosJoestar)
Create: Protection Pixel (by JEDIGD)
Create: Rustic Structures (by robinfrt)
Create: Storage [Neo/Forge] (by ausmez)
Create: Ultimate Factory (by robinfrt)
Cupboard (by someaddon)
Curios API (Forge/NeoForge) (by TheIllusiveC4)
Data Anchor (by Corgi_Taco)
Destructive Moon (by Smallfireworks)
Enhanced Celestials - Blood, Blue, & Harvest (Super) Moons (by Corgi_Taco)
Extra dungeons (by Leonxkingx)
FTB Chunks (NeoForge) (by FTB)
FTB Chunks x Xaero's Compat (by Satherov)
FTB Essentials (Forge & Fabric) (by FTB)
FTB Library (NeoForge) (by FTB)
FTB Teams (NeoForge) (by FTB)
Farmer's Cutting: Quark (by Joshcraft2002)
Farmer's Delight (by vectorwing)
Fast Leaf Decay (by olafskiii)
FerriteCore ((Neo)Forge) (by malte0811)
FleshZ [Neo/Forge] (by Lxshh)
Galosphere (by orcinus73)
Galosphere Trimming (by KreloX)
GeckoLib (by Gecko)
GuideME (by shartte)
Inventory Sorter (by cpw)
Iris & Oculus Flywheel Compat (by leon_mout)
Iris Shaders (by coderbot)
Jade 🔍 (by Snownee)
Just Enough Items (JEI) (by mezz)
KubeJS (by LatvianModder)
KubeJS Create (by LatvianModder)
Lodestone (by sammysemicolon)
Loot Integrations (by someaddon)
Loot Integrations: Underground Villages, Stoneholm (by someaddon)
Lush Cave Trader (by Leonxkingx)
Miner's Delight + (by soytutta)
ModernFix (by embeddedt)
Mouse Tweaks (by YaLTeR)
Open Loader (by DarkhaxDev)
Polymorph (Fabric/Forge/Quilt) (by TheIllusiveC4)
Prickle (by DarkhaxDev)
Primal Winter (by AlcatrazEscapee)
Quark (by Vazkii)
Rhino (by LatvianModder)
Rustic Delight (by PhantomWing)
Snowballs Freeze Mobs (by Serilum)
Sodium (by JellySquid)
Storage Drawers (by Texelsaur)
TenshiLib (Forge/NeoForge) (by flemmli97)
TerraBlender (NeoForge) (by TheAdubbz)
The Undergarden (by Quek04)
Undergarden Additional Structures (by Veydiz)
Undergarden Delight (A Farmer's Delight Add-on) (by NoCube)
Underground Villages, Stoneholm (Fabric/Forge/NeoForge) (by Reggarf)
Underground Worlds (by HexagonNico)
WorldEdit (by sk89q)
Xaero's Minimap (by xaero96)
Xaero's World Map (by xaero96)
YUNG's API (NeoForge) (by YUNGNICKYOUNG)
YUNG's Better Caves (Forge/NeoForge) (by YUNGNICKYOUNG)
YUNG's Better Dungeons (NeoForge) (by YUNGNICKYOUNG)
YUNG's Better Mineshafts (NeoForge) (by YUNGNICKYOUNG)
YUNG's Cave Biomes (Forge/NeoForge) (by YUNGNICKYOUNG)
Yung Structures Addon for Loot Integrations (by someaddon)
Zeta (by Vazkii)