Skeleton spawner income guide

Skeleton spawners are one of the most popular ways to earn money on DonutSMP. A stack of spawners produces bones without you lifting a finger, and there is almost always a buy order waiting to take them. The skeleton spawner calculator turns the number of spawners you own into bones and money per minute, hour and day.

1. Enter how many skeleton spawners you have stacked.
2. Read your bone output per minute, per hour and per day.
3. Check the income estimate, which values your bones at the best bone buy order.
4. Use the production curve to see what adding more spawners would do.

The production formula comes from community testing, credited to 3706, and the bone price updates with the market.

The most important thing the calculator shows is that output does not grow in a straight line. The first spawners are the most productive, and each one you add after that contributes a little less:

Going from 1,000 to 10,000 spawners multiplies what you spend by ten but does not even double your bones. Before buying a big batch, check the curve and compare the extra income with what the spawners cost on the auction house.

The income estimate assumes you sell every bone to the best bone buy order. That is the fastest way to cash out, but the best order only wants so many bones. If you produce a lot, part of your haul will go to lower orders and your real income will be a little lower than the estimate.

Check the bone price page for how many bones the top orders still want, and keep an eye on the trend. Bone prices fall when lots of players expand their farms at once.

• Collect and sell regularly so your storage never fills up and production stalls.
• Sell into strong buy orders rather than listing bones on the auction house.
• Work out your payback time: what the spawners cost divided by the extra income per day.
• Compare against other farms and against simply flipping. The flipping guide covers the alternative.