The Kalahese Desert is the clearly visible central area in light brown.

The Kalahese Desert is the location of the Alin Campaign, as well as being the central part of the main continent of Aio, and where the Alin kingdom is situated, as well as Mezekesh, a once thriving city corrupted by dark glass, serving as the prison cell for Sawu.

It is a hot and dry sand erg, with the occasional volcanoes and sand dunes.

Damanhur and Dakhla reside here, in the Sand and Flame Fortresses. Thuran the Sand Dragon, who resisted Sawu's attempt at corruption, is also found there. The Doge of Venucci dies in Mezekesh as Sawu gets freed from his madness.