In The Dream-Pack you can Explore many Dungeons and much more also you can Visite The Sky/Space With Galacticraft and Davincis Vessels.
Also you can make cool wizard Stuf and spell Magic. Applied Energistics are also in the modpack so you can make Tech-Things.
More Mods:
Mekanism
Biomes O' Plenty
DivineRPG
Dynamic Trees
MCA
Iron Chest
The Dream-Pack Team
