Summary
Mars — Holy Mars, the Red Planet, Forge Primus — is the original world of the Cult Mechanicus and the seat of the Fabricator-General, supreme priest-king of the Mechanicum. Every other forge world is, by doctrine, a daughter or grand-daughter of Mars.
Geography
- The Hive Sprawl — vast continuous manufactorum complexes spanning the entire planet’s surface.
- Olympus Mons — the Great Spire, seat of the Fabricator-General.
- The Noctis Labyrinth — a maze of canyons housing the deep archives and forbidden vaults.
- The Pavonis Mons — site of the original Treaty of Mars compact.
Notable institutions
- The Synod of the Mechanicum — the parliament of senior Magi.
- The Centurio Ordinatus — keepers of the largest war-engines.
- The Order of Lithos, the Cybernetica, the Reductor — the great professional orders.