The Prosperous Cider Mill is a special production building released during the 2018 Fall Event. It can be obtained by using the Cider Mill Upgrade Kit on the Bountiful Cider Mill. It can be upgraded further to the Flourishing Cider Mill. Cider Mill Upgrade Kits are rewarded during the fall events. Cider Mill Upgrade Kits are rewarded during the fall events.
- Cider Mill
- Blooming Cider Mill
- Fruitful Cider Mill
- Bountiful Cider Mill
- Prosperous Cider Mill
- Flourishing Cider Mill
Pre-Event Release[edit | edit source]
Although the Prosperous Cider Mill was to be released during the 2018 Fall Event, it was possible for players on both beta  and live  servers to upgrade their existing Bountiful Cider Mill to the Prosperous Cider Mill before the event started. This was explained as unintentional and not a bug .