MinebutmineCraft

Engineering Craft is a pack designed for a slightly harder survival experience and is centered around the Create mod and Immersive Engineering 2 mods that allow the player to make for mechanical creations such as doors/elevators/trains/crushers/power systems. The pack also contains plenty of building mods allowing for players to build in what ever style they would like. 

Engineering craft is also meant to be a harder survival for this the pack contains mods like

Natural progression (changes early game progression)

Serene Seasons (adds season)

The modpack also has plenty of mods for exploration

Biomes O' Plenty (adds extra biomes)

Oh The Biomes You'll Go (adds more biomes)

Yung's Better Dungeons (redesigned Dungeons)

Yung's Better Strongholds (redesigned strongholds)

Dungeon Crawl (adds more unique dungeons to explore and battle through)

The pack also contains many mods for building.  (New blocks/Decorative items)

Decorative Blocks 

Cyclic

Construction Wands

Macaw's Bridges/Doors/Fences/Furniture/Trapdoors/Windows

Supplementaries 

Framedblocks

The modpack also contains quality of life mods like

JEI (A menu to see all items and their recipes) 
Journeymap (A map)

Better Advancements (adds additional Advancements)

Clumps (Combines all xp orbs in a small area into 1 to reduce lag)

Comforts (adds sleeping bags and hammocks) 

FastWorkbench

Inventory Sorter

Jade (allows you to identify what block/mob your looking at)

Mouse Tweaks

Quark

Trash Cans