Short answer: Use this Last Asylum: Plague Sanctuary calculator to total Wood, Grain, and Herb for any upgrade range before you spend speed-ups or alliance help.

All building calculators

Upgrade calculator

Sanctuary

Each row is one upgrade: level N → N+1. Totals sum wood, grain, herbs, and base build time for steps we have in the guide. Level pickers run through 30; if your target is above the last level with data (currently 30), totals only cover upgrades through that level.

*data can be incorrect too, please verify it before using

Totals for levels 1 → 2

Wood

32

Grain

32

Herbs

0

Time

2s

Steps

1

Planning an upgrade? Share this calculator with your alliance so everyone can compare resource costs.

Community post (copy & paste)

I made a Sanctuary upgrade calculator for Last Asylum: Plague players who want to see the total Wood, Grain, and Herb cost before committing. It covers level-to-level planning and is free to use.

Data compiled for Last Asylum Guide · Maintainer: Slaughter Queen · Game balance may change with patches.

About Sanctuary

Priority: Highest

The Sanctuary is the heart of your base — its level sets the maximum level every other building can reach. Upgrading your Sanctuary unlocks the next tier of development for your entire city, making it the single highest-priority building to keep up-to-date.

Upgrade Tips

  • 1Always upgrade your Sanctuary first before upgrading other buildings — everything else is gated behind it.
  • 2Sanctuary upgrades require the most resources of any building, so stockpile wood, grain, and herbs before starting a push.
  • 3Use speed-ups on Sanctuary upgrades to break through to a new tier as quickly as possible.