This is a pack designed with fun and content-rich game-play in mind. Mods like Thaumcraft and Botania allow you to shape and develop your world through means of magic, or you can even create your own magical dimensions with Mystcraft. Mods like Thermal Expansion and EnderIO will allow you to control and automate your world with technology, and even store all of your wealth as energy with Applied Energistics 2. You can farm, build machines, build a base, fly, all to your heart's content.
The mods are configured to provide custom content, while still giving challenge to the game. The mods are chosen to fill certain gaps in game-play, most all of them have specific uses in mind. The pack is designed to be played open-world; there is no set story-line, so that you can choose how you influence the world you create and what paths you take.
It is recommended you play on at least Easy difficulty; there are some fun challenges to be had involving monsters.
Even within the Tech tree, you are left with choices on what ways you will achieve your goals.