Zombie Miners, Explorers, and Villagers that complete a certain amount of mining, exploration, and chopping tasks every month can claim rewards when they reach milestones. These are the monthly quests rewards:
Random: Glass, Fabric, Stone, Emerald, Rubi, Sapphire, Diamond, ZBF, ZBC, Egg Incubator, Magical Fragment.
Spin the wheel: Glass, Fabric, Stone, 100 ZBF, 250 ZBF, 500 ZBF, 50 ZBC, 100 ZBC, 150 ZBC, Magical Fragment, Magnet
IMPORTANT: Note that the rewards MUST be claimed during the current month. Players won't be able to claim the rewards in the next month.