Your harvester can overheat, and can only take a certain load; use this to your advantage and ensure your vehicle remains efficient. As you progress, you can upgrade your harvester. Using coins, you can improve its horse power, cooling and milling efficiency. Furthermore, you can buy new trucks and complete missions for extra rewards. Have fun milling the zombies in this exciting game!
- Horse power – Increases maximum load capacity
- Cooler – Increases heat reduction
- Milling Efficiency – improves the speed of Zombie Milling