Since update 1.010, each zombie seated on a Zombie Carousel provides 10 Factory power, or 20 with the Keeper’s Belt Master perk. An empty seat contributes nothing. Moving a seated worker to another job reduces the available power immediately.
A worker’s station mastery is separate from Carousel capacity. Zombie talents and tools explains where specialist equipment matters; the Carousel’s displayed power budget remains the calculator’s input.
Count seated workers
A Carousel has four seats, and the factory has five Carousel locations. A fully staffed factory therefore supplies 200 power, or 400 with Belt Master. These are capacity limits for the unmodified game, not production-speed bonuses.
Use the factory’s displayed demand when planning staffing. The minimum number of seated zombies is the demand divided by power per worker, rounded upward.
Enter that demand in the factory power calculator to compare normal workers with Belt Master and check the carousel requirement.
| Displayed demand | Normal workers | With Belt Master |
|---|---|---|
| 10 | 1 supplies 10 | 1 supplies 20 |
| 20 | 2 supply 20 | 1 supplies 20 |
| 25 | 3 supply 30 | 2 supply 40 |
| 40 | 4 supply 40 | 2 supply 40 |
| 45 | 5 supply 50 | 3 supply 60 |
For example, a line demanding 25 power works with three normal workers. Taking one away leaves only 20, so the factory stops. Keeping all three seated restores 30 capacity; it does not make a 25-power line run faster than its machines allow.
Belt Master first saves a whole Carousel at 41 displayed demand. The factory-capacity comparison shows the worker and Carousel breakpoints up to the 200/400-power limits.
What consumes power
Normal Conveyor Belts and Splitters use 1 power each. Underground Conveyors use 2 while crossing five spaces. Conveyor Chests use none. A station’s built-in output conveyor can also contribute demand; some side-facing configurations lack that built-in output.
This is why counting only visible long belt runs can understate the total. Read the in-game counter after placing a bench, supply station or crossing. Leave enough staffed capacity for the next component before extending a working line.
Factory power and Zombie Power
Zombie Power, produced by a Bioreactor from Wheat, is an inventory item used in crafting. It does not increase Carousel capacity. Feeding more Wheat into a Bioreactor cannot fix a conveyor network whose demand exceeds its staffed power.
If capacity already covers the displayed demand, inspect ingredients, chest filters and delivery destinations. Additional Carousel workers cannot clear an incompatible item sitting in a machine’s input lane.
Sources
- Travalgard: 1.010 data comparisonCurrent Carousel output, Belt Master and the distinction from older values.
- Fortigan and FreakyAt: Factory BasicsInput/output behavior, power costs and current factory examples.
- Official Steam update 1.010Carousel rebalance and order slots scaling to five with population.


