Inspired by FTB Revelations and utilizing the mods available for Minecraft 1.16.4-5, Mountains to Valleys seeks to offer a wide array of mods while staying light enough for most modpack capable computers to run. Though the scope isn't quite that of a kitchen sink style, sky line to bed rock spanning modpack, Mountains to Valleys seeks to give players as many paths to travel in varying difficulties as possible, with as little overlap in each mod's mechanical feel as feasible. Additionally, a number of mods have been included to offer extra dimensions to explore including the Undergarden, the Bumblezone, and Space-Bosstools. For an additional challenge disable natural regeneration for your game world and use bandages and sleep to heal instead.

Notable mod substitutions include:

-Mekanism and Modular Powersuits to replace industrialcraft and some of buildcraft's mechanics

-Productive bees, Buzzier bees, and etc. to replace as much of forestry's bee breeding system as possible

-MoreRed to replace the redstone logic gates of Project Red

-Ars Nouveau, Mana and Artifice, Eidolon, and Nature's aura to try to capture as many mechanics of Thaumcraft and Witchery as possible

-Macaw's mods to replace Biblocraft with a wide variety of decorative blocks and furniture

-Refined Storage and addons for it to replace Applied Energistics

Mod List:

Biomes O' Plenty
Clumps
JEI
Light Overlay
Minecolonies
MythicBotany
Obfuscate
Structurize
Tetra
The Bumblezone
/tank/null
Abnormals core
Additional Banners
Additional Bars
Advanced Hook Launchers
Advanced Peripherals
Akashic Tome
Apotheosis
Appleskin
Aquaculture 2
Armor Toughness Bar
Ars Nouveau
Astral Sorcery
Bad Wither No Cookie
Bed Benefits
Bedspreads
Better advancements
BetterEnd
Blood Magic
Blur
Bookshelf
Botania
Botany Pots
Buzzier Bees
Callable Horses
Cat Jammies
Computer Craft: Tweaked
CoFH Core
Colytra
Comforts
Compressium
Controlling
Cooking for Blockheads
Corail Tombstone
Cosmetic Armor
Craftable Horse armor and Saddles
Crafting Station
Create
Curio of undying
Curios API
Curios Armor Stands
Dark Utilities
Demagnetize
Eidolon
Enchantment Descriptions
Ender Storage 1.8.+
Engineer's Decor
Engineer's tools
Ensorcellation
Extra Disks
Extra Storage
Fairy Lights
Farming for Blockheads
Fast Leaf Decay
FastFurnace
FastWorkbench
Flat Bedrock
ForgeEndertech
FTB Backups
FTB Chunks
FTB Library
FTB Ultimine
Gauges and Switches
Glassential
Guard Villagers
Harvest
Hats
Health Overlay
Immersive Engineering
Immersive Petroleum
Immersive Posts
Industrial Foregoing
Inventory Tweaks Renewed
Iron Chests
Iron Jetpacks
JAOPCA
JEI Integration
Just Enough Resources
KleeSlabs
Login Shield
Lollipop
Macaw's Bridges
Macaw's Doors
Macaw's Fences and Walls
Macaw's Furniture
Macaw's Roofs
Mana and Artifice
Mekanism
Mekanism Additions
Mekanism Generators
Mekanism Tools
MmmMmmMmmMmm (DuMmmy mod)
Mod Name Tooltip
Modular Powersuits
More Dragon Eggs
More Red
Morpheus
Nature's Aura
Nature's Starlight
NetherPortalFix
NoMoWanderer
Numina
Overloaded Armor Bar
Packing Tape
Pam's Harvest Craft 2- Core
Pam's HC2- Food Core
Pam's HC2- Food Extended
Pam's HC2- Trees
Patchouli
Polymorph
Powah!
Productive Bees
Psi
Rats
Rats: Ratlantis
Refined Storage
Refined Storage Addons
Refined Storage: Requestify
Rope Bridge
Rough Tweaks Revamped
Runelic
Simple Generators
Space- Bosstools
Spice of Life: Carrot Edition
Storage Drawers
Storage for ComputerCraft
Tetranomicon
The One Probe
The Undergarden
Thermal Cultivation
Thermal Expansion
Thermal Foundation
Thermal Innovation
Thermal Locomotion
Titanium
Tome of Blood
ToroHealth Damage Indicatiors
U Team Core
Undergarden/Tetra Patch
Useful Backpacks
Waystones
Woot