Colors: The vertical bands of color have been used to distinguish the various Difficulty Levels. VH=Very Hard, H=Hard, N=Normal, E=Easy and VE=Very Easy. The horizontal bands of color are to aid in reading across the chart.

Size: Size of the Structure in tiles.

Emp (Employees): The number of workers that it takes to fully staff the Structure. The number of workers required is the same for all difficulty levels.

Cost: The cost of the Structure, listed for all difficulty levels. As the level of difficulty increases, so does the cost of the structure.

Desirability: The number in the "D1" column represents the desirability effect (positive or negative) that the Structure has on adjacent squares. The number in the "D2" column represents the desirability effect 2 tiles from the Structure. "D3" = 3 tiles, etc. 6 tiles is the maximum range that the desirability effect extends for any Structure. These values are the same for all difficulty levels.

Risk of Fire: As the difficulty level increases, so does the possibility that the Structure will catch fire. The higher the number is, the greater the chance that the Structure will catch fire. The protection provided by a Fire Marshal does not last as long, and the decrease in the risk is not as great each time the Fire Marshal passes by.

Risk of Damage: As the difficulty level increases, so does the possibility that the Structure will collapse. The higher the number is, the greater the chance that the Structure will collapse. The protection provided by an Architect does not last as long, and the decrease in the risk is not as great each time the Architect passes by.

Note: There is one more factor that increases as the difficulty level increases. The rate at which goods are consumed by Structures that require goods to function is greater at higher difficulty levels. For example, Libraries use more papyrus and Senet Houses consume more beer. The complete list is as follows: Mortuary, Library, Scribe School, Senet House and Zoo.