Home Village upgrades

How many potions
do you need?

Enter the time left on each busy builder or your lab. Compare potion counts and finish times for zero waste or full boost.

Have your village export? Paste your village data instead

1Choose a potion
2Time left on each builder3 of 6 busy

One potion boosts every busy builder. Add each builder that is working to see what a potion is really worth.

    Use the times shown in game with no boost active. Presets fill the highlighted builder.

    Zero waste Full boosts only
    6
    Builder potions
    Use back-to-back
    Finishes in
    6h
    2d 6h saved · 90% less time

    Time breakdown

    6h boosted0m at normal speed
    Why this count

    Each potion saves 9h. The last boost finishes the upgrade. Another potion would leave unused boost.

    Full boost

    Fastest finish

    Keep boosting until the upgrade finishes, even if the last potion has time left.

    Finishes in
    6h

    2d 6h saved

    Same finish time as zero waste
    Potions needed
    6 Builder potions

    Same potion count as zero waste

    Unused boost
    0m

    Each potion runs for its full hour.

    Use 6 potions back-to-back. More potions extend the boost. The speed stays at 10×.

    How the calculation works

    A Builder Potion completes 10 hours of work in 1 hour. That saves 9 hours. A Research Potion completes 24 hours of work in 1 hour and saves 23 hours.

    Zero-waste potions = floor(hours ÷ speed)
    Zero-waste finish = hours − potions × (speed − 1)
    Full-boost potions = ceil(hours ÷ speed)
    Fastest finish = hours ÷ speed

    Zero waste rounds the potion count down. Full boost rounds it up. Finish times include seconds when needed.

    A Builder Potion boosts every busy Home Village builder at once, so each potion saves up to 9 hours on each of them. The potion counts follow your longest upgrade: a boost only goes to waste once every builder is done. Builder time saved adds up the time saved across all builders.

    These times assume the upgrade runs without interruption. Start with no active boost and enough potions for the result shown. The calculation excludes Apprentice and Lab Assistant time.

    Builders you leave at 0 count as idle. A builder that finishes during a boost frees up early, and the rest of that potion keeps helping the others.