"Face shades, serpents and rivers of molten earth in Hades' underworld realm."—Map description
Notable facts about this map include the appearance of wild Shades and Serpents that lurk in some regions, especially close to ruins, where Relics and Boars may be found. There are also rivers of molten lava and some hills, that may constrict expansional actions.
Huntables include solely Boars. There are moderate amounts of dead trees around the map, and some Gold Mines.
The landscape is infernal, with lifeless, barren earth, rivers of molten lava and hostile creatures. Also, Harpies fly above the barren landscape; despite their hideous appearance however, they are totally harmless. The lighting of Erebus is unique and can be accessed on the Scenario Editor.
There is a very rare chance for a water version map to appear randomly; this one features water similar to the one in River Styx, dark and lifeless. This replaces the lava terrain normally found, but other than that, the gameplay, layout and local inhabitants are pretty much the same, especially as no fish are featured.
- The Erebus and River Styx maps are the only ones to be set in the Underworld, and the only subterranean Random Maps in Age of Mythology.