Reus

To build the Mad Scientist project, you need to have a village that meets the following requirements:
- The village needs to be a Swamp village.
- The village needs to have enough Prosperity to start a new project.
- The village needs to host the Druid project.

You can influence the nature of your village, that is, decide if it will be a swamp village. Just be sure that the middle tile of the village resides on a swamp biome.
To ensure you have enough Prosperity, just be sure to improve the village as it grows. Try to not accumulate too much Greed though. A small but steady growth is the most healthy.
The only way to ensure a Druid project is already built is to see to it that the village "chooses" the project as its first project when it is founded. You can destroy the first project if it is not a Druid project. To increase the change, be sure to not have any sea or mountain biomes in the influence area of your village.

This is a level 2 project thus you have to complete a level 1 project before this will spawn.

The level one project required here is a Druid:
It will spawn in forest, desert or swamp villages. Due to the specializations utilize minerals or plants.

Requirements:
30 Tech

A mad scientist spawn in any village

Requirements:
80 Tech
40 Gold
You might have to destroy a neighboring village