Tropical Island
Explore an lush island that has been befouled by machinery that sucked the life from the ground.
Mine life essence that comes in the form of a new type of crystal, Life Crystals.

There are no ores left on the island.
Breached Creavasse
Escape a violent blizzard to find your way into down to the base of a crevasse unnaturally expanded by ancient technology.
These machines contain the same remnant Life Crystals as the Tropical Island.
The guardians of the realm from before it was befouled provided an excellent source of Ice Essence 
This encounter is designed to be more of a challenge. Between the inital weather, the challanging decent and the Ice Elementals that are aggressive and abundant the journey to the centre could be very difficult.
Awakened Caldera
A giant supervolcano that had been laid dormant for centuries was roused back to life by the extraction process. Long since abandoned the potent energies of the volcano provide the most abundant source of Life Crystals.
The cracks throughout the caldera make for a lethal hazard.

This encounter is designed to be the toughest, between the lava, lethal falls, and numerous enemies succuss should be hard won. The reward is the highest denisty of life crystals and abundant fire essence from the elementals.
Planned Features
2 additional biomes
Frozen Ravine - Cracked Permafrost reveal the machinery beneath.
Dry Caldera - Even a might volcano was tamed by the civilsation that built these machines
A large central reactor or central station.
Optimisation passes.
Balance pass on the Crystal Essence