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

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Upgrade calculator

Infirmary

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

73

Grain

228

Herbs

0

Time

30s

Steps

1

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

Community post (copy & paste)

I made a Infirmary 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 Infirmary

Priority: High

The Infirmary heals wounded troops after combat, converting them from 'severely wounded' back into active forces. A high-level Infirmary directly determines how many troops you can recover after a battle, making it one of the most strategically important buildings for active fighters.

Upgrade Tips

  • 1Never let your Infirmary lag behind your Barracks — losing troops permanently because your Infirmary was full is a costly mistake.
  • 2Higher Infirmary levels increase both bed capacity and healing speed.
  • 3Use herbs to speed up healing during active war events rather than waiting for natural recovery.