Overworld
The Overworld is where you will start your adventure in Craft to Exile [Harmony]. It contains many unique structures from mods such as Repurposed Structures, Mo' Structures, and Dark Dungeons. You can also rarely find Waystones scattered across the dimension.
The first thing you'll want to do is set up camp. Some nights will harbor crimson moons, which cause mobs to invade you during a sleepless night. It is encouraged that you set up traps to help defend yourself.
Mobs in the Overworld (and in fact, all dimensions) scale to your level. In the Overworld, mobs will spawn as low as level 1 to 50. Remember that fighting mobs more than 5 levels above or below you will incur an experience penalty.
Between exploring dungeons, setting up camp, mining for ores, completing Overworld quests, and defeating bosses, there is a lot to do in the Overworld before moving onto other dimensions such as The Bumblezone and the Nether!
Thanks to Lard Casseltone and Power Up Corner for their hard work in compiling a full list of images containing every biome! See the list here!