After the "Alchemy" science is studied, the new tab - Alchemy - will appear in the Vault window.
The "Alchemy" science allows:
1. making buildings "perfect";
2. making Artefacts "perfect";
3. stealing magic Crystals.
1. Perfection of buildings#
Some buildings, upgraded to the maximum level, can be perfected."Perfect" buildings have improved parameters and extra features.
For example, "perfect" military buildings produce certain number of units once a day.
When you click on a building of level 7 (or Tavern building of level 1) that can be perfected, you will find the "Make building perfect" button instead of the usual "Upgrade" button in the round menu of the building.
"Perfect" buildings are marked with a little crystal sign instead of the number showing level.