Welcome to Create: Conductor's Dream, a neat modpack centered around the Create mod and its Trains.

Main features:

No Nether! Travel in the Overworld! Most, if not all of the resources are still obtainable
The Create mod and various addons to it, though keeping the balance
Various deco mods for the creation of pretty trains and other places
Some quests to guide you the right direction
A currency through Create: Numismatics, useful for multiplayer
Titles for multiplayer (quest menu)
Some QOL mods like Sophisticated Backpacks, Storage Drawers, etc.
New Village generation through Integrated Villages
Optimization mods like Embeddium
A feel pretty close to vanilla

Mods included:

Adaptive Performance Tweaks: Core
Adaptive Performance Tweaks: Mods
Amendments
AppleSkin
Architectury API
Artifacts
Athena
AttributeFix
Autochef's Delight
bad packets
Backported Wolves
Balm
Better chunk loading
Better Fps
Biomes O' Plenty
Bookshelf
Charm of Undying
Chat Heads
Cherished Worlds
Chunk Sending
Client Crafting
Cloth Config API
Clumps
Cobweb
Collective
Configured Defaults
Connectivity
Corpse
Cosmetic Armor Reworked
CraftTweaker
Create
Create: Misc & Things
Create Central Kitchen
Create Compressed
Create Confectionery
Create Deco
Create Enchantment Industry
Create Questing
Create Railways Navigator
Create Recycle Everything
Create Slice & Dice
Create: Additional Recipes
Create: Bells & Whistles
Create: Connected
Create: Copycats+
Create: Crystal Clear
Create: Design n' Decor
Create: Extended Cogwheels
Create: Framed
Create: Interiors
Create: Liquid Fuel
Create: Netherless
Create: Numismatics
Create: Oxidized
Create: Steam 'n' Rails
Create: Totem Factory
Create: Train Perspective Fix
Create: Trains On Trains
CreateTweaker
CullLessLeaves Reforged
Cupboard
Curios API
Death Knell
Decorative Blocks
Default Options
DespawnTweaker
Dimensional Sync Fixes
[EMF] Entity Model Features
[ETF] Entity Texture Features
Embeddium
Embeddium (Rubidium) Extra
Embeddium/Rubidium Dynamic Lights
EMI
EMI Loot
EMIffect
Enchantment Descriptions
Entity Culling
Every Compat (Wood Good)
Experimental Settings Disabler
Extra Compat
FallingTree
FancyMenu
Farmer's Delight
Farsight
Fast Async World Save
Fast Leaf Decay
Faster Ladder Climbing
FastFurnace
Fastload
FastSuite
FastWorkbench
FerriteCore
Fix GPU memory leak
FPS Reducer
FTB Library
FTB Teams
FTB Quests
FTB XMod Compat
Global GameRules
Handcrafted
ImmediatelyFast
Integrated API
Integrated Villages
Item Filters
Item Obliterator
Jade
Jade Addons
Just Enough Archaeology
Just Enough Items (JEI)
Just Enough Professions (JEP)
Just Enough Resources (JER)
Just Player Heads
Kiwi
Konkrete
Kotlin for Forge
Login Protection
Macaw's Fences and Walls
Mob Armor Trims
ModernFix
Moonlight Lib
Mouse Tweaks
Naturally Charged Creepers
Nature's Compass
Necronomicon API
No Chat Reports
No Nether Portal
Open Parties and Claims
Packet Fixer
Placebo
Polymorph
Quad
Quark
Quark Delight
Radium Reforged
Recipe Essentials
Remove Reloading Screen
Resourceful Lib
RightClickHarvest
RightClickHarvest Supplementaries Compat
Saturn
Server Performance - Smooth Chunk Save
Smooth Boot (Reloaded)
Snow Under Trees
Snow! Real Magic!
Sophisticated Backpacks
Sophisticated Core
Soul fire'd
Spyglass of Curios
Starlight
Starter Kit
Storage Drawers
Stray Spawn
Structure Essentials
Supplementaries
Supplementaries Squared
Temporal API
TerraBlender
Toast Control
Too Fast
Xaero's Minimap
Xaero's World Map
XaeroPlus
YUNG's API
YUNG's Better Jungle Temples
YUNG's Better Witch Huts
Zeta

Let me know if you don't want your mod to be here, and if a mod's obsolete!