I wish there are several map layers, e.g. Sky, surface, underground, & Myrror.
Sky Layer
- Flying unit occupies the same XY spot for the Sky & Surface layer at the same time; so it can be attacked from Surface
- Can see surface layer underneath. Sky layer is around 5000m elevation
Cloud Tile
- The only ‘ground’ tile on the Sky Layer (except, High Mountain tile and Tower of Babel can reach the Sky)
- Units located on Cloud cannot be seen from Surface layer
- Almost all structures, terrain types exist at other layer can be here (flying fortress, anyone?)
- Some Cloud tiles can drift by Wind or wind magic
Surface Layer
- Default layer for Human/Fallen & other races
Sea/Lake/Ocean/River tile
- Normally located on the surface, but it can be on any layer
- Units that have the “Dive X” ability is able move to the Underwater tiles below (if exist in the same XY spot) for X turns
- On X+1 turn, unit dies if still underwater
Underground Layer
- Units that have the “Drill” ability are able to punch a hole through soil (NOT rock), takes random 3-10 turns to drill.
- Drilling builds a tunnel horizontally, or vertically through layers
- Drilling to a Sea/Lake/Ocean/Underwater tile will cause flooding
- There should be magic that removes soil, or even rock; earthquake, cracks call etc
Underwater tiles
- It is considered Underwater tiles when a Sea/Lake/Ocean/River tile is located in Underground (or lower) layer
- Units that have “Swim” or “Float” ability can move up layer(s), if physically possible
- When there are swimming/floating units on the same XY on the layer above, shadow will be casted to its underwater tile
Abyss tile
- Non-flying unit/artifact dies if fall (through a tunnel) to abyss
- This tile can exist on any layer, but the XY spot on the lower layers must also be abyss.
Myrror layer or other creative ones can replace/complement a Hell layer