DonutSMP Skeleton Spawner Calculator
Estimate bones per minute, hour and day for any spawner count - with DonutSMP's diminishing returns built in.
Skeleton spawners are the classic DonutSMP money farm: they run while you AFK and turn spawner count into a steady stream of bones. The catch is that output does not scale linearly - DonutSMP throttles stacked spawners, so the thousandth spawner earns far less than the first.
This calculator applies the production curve that community member 3706 measured directly on DonutSMP skeleton spawners. Enter your spawner count and it returns the estimated bones per minute, per hour, and per day - and, when recent market data exists, what that is worth at the latest average bone price.
Skeleton Spawner Count
Estimated production for 1 skeleton spawner
Estimate only: production times the latest average bone price recorded by our tracker. Auction prices move constantly.
Current Bone Price on DonutSMP
How to use the skeleton spawner calculator
- Enter your spawner count. Type the number of skeleton spawners in your farm into the calculator - from a single spawner up to a full warehouse.
- Read the production estimate. The calculator applies DonutSMP's diminishing-returns spawner curve and shows the estimated bones per minute, per hour, and per day.
- Check the income estimate. When recent bone price data is available, the calculator also multiplies production by the latest average auction price to estimate income per hour and per day.
About the production curve
The formula behind this calculator was fitted by DonutSMP community member 3706 from real measurements of skeleton spawners: bones collected per minute across a range of spawner counts. It captures DonutSMP's diminishing returns - each additional spawner adds less than the one before it. This page is the mob the curve was measured on, so the numbers are as close to the source data as it gets.
What bones are used for
Bones grind into bone meal and compress into bone blocks, which keeps them in constant demand for farming and building. They are one of the most traded bulk items on the DonutSMP auction house.
Frequently asked questions
How many bones does a skeleton spawner produce on DonutSMP?
Production does not scale linearly on DonutSMP: a handful of spawners each produce roughly two drops per minute, but the server throttles output as you stack more, so per-spawner yield keeps falling. Enter your exact spawner count in the calculator above - it applies the diminishing-returns curve community member 3706 measured on DonutSMP skeleton spawners and shows estimated bones per minute, hour, and day.
Do spawners have diminishing returns on DonutSMP?
Yes. The more spawners you run, the less each individual spawner produces. The curve used by this calculator was fitted from real measurements on DonutSMP (credit: 3706): per-spawner output starts near two drops per minute and decays toward roughly 0.064 drops per minute per spawner at very large counts. That is why doubling your spawners does not double your income.
How much money do skeleton spawners make per hour on DonutSMP?
That depends on the current auction price of bones. When recent price data is available, this page multiplies the estimated bones per hour by the latest average bone price recorded by our DonutSMP price tracker and shows the result next to the production numbers. Prices move constantly, so treat it as a snapshot and check the live bone price page before you commit to a build.
Are skeleton spawners worth it on DonutSMP?
Skeleton spawners are one of the most commonly built AFK farms on DonutSMP because bones stay in demand for bone meal and bone blocks. Whether they are worth it for you depends on the current bone price and how many spawners you can afford: run your numbers with the calculator above, then compare the income estimate against the spawner cost on the auction house.
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