Roads and signs

[LigH]

As already mentioned -- there are several locations which would be useful to declare them as point of reference, like a central and major Bronze Door as entrance to the Stone Labyrinths...

[Akkaido Kivikar]

I don't see what prevents Ylian scientists from inventing the magnetic compass just as was done in real life.

[LigH]

No matter if it is magnetic, magical, or based on whatever effect.

Eventually, it is the developers' decision. We already have some technical issues with "Local vs. World coordinate systems" in OpenGL and the CrystalSpace engine -- you may have seen already some slanted labels above some characters' heads while passing the jade gates (a.k.a. Korogan) through the huge stalagmites in the middle of the roads.

[Under the moon]

Not all planets have magnetic fields. Also, the stalactite could be situated at the north or south pole, once again making a compass useless.

[Xillix Queen of Fools]

Underthemoon was right the edgeward and wallward language was publicly posted before he did it.

Everything else I said I stand by however.