| Category | Lexicon |
| Type | super region |
The Modeus Grid is a grid system defining battle sectors, or regions of the realm. It was conceived by Asmodeus to map out the theater of conflict in the Demon Spawn War (8972 GE - 9493 GE). The maps of the realm continue to use this mapping strategy.
An example of a Modeus Grid centered on the Clans Region:
| Nielalroch | Voternil | Ohtarion |
| Nielalroch | Narbuzad (Clans) | Taurelin |
| Nielalroch | Ara'phis | Skycius |