The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Matarsah/Towns (1 member)
- Materials (7 members)
- Meklaw (15 members)
- Meklaw/Cities (3 members)
- Meklaw/Geography (8 members)
- Meklaw/History (4 members)
- Meklaw/Locations (8 members)
- Meklaw/People (2 members)
- Meklaw/Settlements (3 members)
- Mercanes (1 member)
- Merfolk (4 members)
- Meskilak (1 member)
- Mesollonia (5 members)
- Mesollonia/History (4 members)
- Mesollonia/People (1 member)
- Mesollonia/Settlements (1 member)
- Midanism (2 members)
- Minotaur (1 member)
- Minotaurs (3 members)
- Minotaurs/Heritages (1 member)
- Mithrai/Saints (1 member)
- Mongrelmen (1 member)
- Mostagedda (1 member)
- Mountain-Throne Alliance (1 member)
- Mountain-Throne Alliance/Geography (1 member)
- Mountain-Throne Alliance/Locations (1 member)
- Mountains (33 members)
- Mummies (1 member)
- Myos (2 members)
- Myos/Neighborhoods (2 members)
- Mysteries (3 members)
- Mythical creatures (1 member)
- Nabopolassar's Host (8 members)
- Nabopolassar's Host/Forts (3 members)
- Nabopolassar's Host/Geography (2 members)
- Nabopolassar's Host/History (2 members)
- Nabopolassar's Host/Locations (2 members)
- Nabopolassar's Host/People (1 member)
- Nabopolassar's Host/Settlements (4 members)
- Nabopolassar's Host/Towns (1 member)
- Nagaji (1 member)
- Nagaji/Heritages (1 member)
- Nakazani (4 members)
- Nakazani/People (1 member)
- Nations (129 members)
- Nations/Depths (1 member)
- Nations/Historical (13 members)
- Nations/Legendary (1 member)
- Navbox orphans (0 members)
- Neighborhoods (3 members)