Gregic Skies

Gregic Skies is a GT:CEu focused modpack, with around 140 other mods. youll have quite a bit to cover in this modpack, so the questbook will help you.
a somewhat basic list of mods:
main tech mods: GT:CEu, AE2, Extreme Reactors, AR (Advanced Rocketry), NuclearCraft, Ender IO, and Thermal Innovation.

main magic mods: Thaumcraft, Psi, Forbidden & Arcanus, and finally, Astral Sorcery.

main resource generation mods: GT:CEu, Multiblock Tweaker (soon), Actually Additions, DML, and NuclearCraft.

currently, the game has ~10 quests.

it is NOT fully balanced

GT:CEu tech tree ranging from Low Voltage all the way up to Ultra Voltage

Lots of AE2 automation to be done later

expansive magic system with a lot to do

custom items/blocks

and more soon.