Discover an item by digging with a Shovel.
Unlock all 18 classes.
Learn all abilities of a single class.
Recover 4 Aerstone.
Destroy 5 Antiair.
Defeat 30 arachnids.
Equip a primary class, secondary class, and 3 passives.
Create something using a Crafting Kit.
Complete 50% of the Journal.
Repair a damaged vehicle.
Beat the game on any difficulty setting.