== Known limitations ==
=== Distribution of ground terrain types===
{| class="wikitable"
! Terrain type
! Picture
! Average number of global tiles in 12 trials
|-
| Desert
| [[File:Desert.png]]
|
|-
| Jungle
| [[File:Jungle.png]]
|
|-
| Steppe
| [[File:Steppe.png]]
|
|-
| Leafy forest
| [[File:Leafyforest.png]]
|
|-
| Evergreen forest
| [[File:Evergreenforest.png]]
|
|-
| Tundra
| [[File:Tundra.png]]
|
|-
| Glacier
| [[File:Glacier.png]]
|
|}