Megalomania

This modpack is big. At 170 mods, its hard not to look like other packs. So why does Megalomania stand out? Here's why:

A multitude of mods that let you create incredible gadgets, gigantic machinery, farm giant tracts of land, and create powerful weapons to destroy your enemies.

Lots of progression based mods to explore.

Become the most feared wizard in the land by combining Ars Magica 2, Blood Magic, Botania, and Thaumcraft.

Tech up through Rotarycraft + Reactorcraft & unleash the power of stars by building a Fusion Reactor.

Build a massive Applied Energistics network and automate all the things!

Customize your world with Bibliocraft, Carpenter's blocks, and chisel.

And do them all at the same time.

There is quite a lot to explore in this modpack. Roguelike Dungeons, the Twilight Forest, The Deep Dark, Thaumcraft's Eldritch dimension, Chromaticraft's burrows and dimension, nothing is off limits.

If you then decide the world is still too boring, then make your own with RFTools!