Spiritualism is a Tier Three technology available after researching Archery.

Spiritualism unlocks the Grow Forest ability, allowing you to plant a forest on field, fruit, or crop tiles within your territory for 5 Stars.

It also unlocks Forest Temples, which cost 15 stars, 5 less than the normal 20 stars, but can only be built on forests. Including the cost of growing a forest, it costs 20 stars.

With Farming, Chivalry and Spiritualism unlocked, you can transform an empty field to a Farm by using Grow Forest, Burn Forest, then placing a farm. This is useful when you want to max out your cities' population.


Grow forest

The Grow Forest icon

Forest temple level 1

A Forest Temple