Blood Moon Calculator
Forecast your next blood moon day, projected game stage, expected zombie count, and threat level. Plan weeks ahead.
Blood Moon Forecast
Frequently Asked Questions
How is the next blood moon day calculated?
The calculator rounds up to the next multiple of your horde frequency setting. With 7-day frequency on Day 3, your next horde is Day 7.
What is game stage growth rate?
We estimate +1.5 game stage per day. Your actual growth depends on player level gains and kill rates.
Why do milestone days matter?
Specific days unlock new zombie types: Cops appear around Day 14, Wights around Day 21, and Demolishers around Day 35. Each one changes how you should prepare.