A waste world is an Imperial classification for planets poisoned by industry and war. Learn what defines them and which worlds carry the label.
Worlds
Planets, war zones, and locations across the galaxy, from Holy Terra to the Eye of Terror.
181 entries in this section
Start here
The pages most readers open first in this section.
Terra
Terra is humanity's homeworld and the heart of the Imperium in Warhammer 40k. Here's what it is, why it matters, and how it fits into the wider lore.
Mars
Mars is the Adeptus Mechanicus forge world at the heart of the Imperium. Here's what it is, who rules it, and why it matters in Warhammer 40k.
Armageddon
Armageddon is a hive world in the Imperium, site of massive wars against Orks and Chaos. Learn its origins, wars, and key lore facts.
Cadia
Cadia was the Imperium's fortress world guarding the Cadian Gate, the only stable route out of the Eye of Terror. Here's what it was and how it fell.
Ultima Segmentum
Ultima Segmentum is the largest and easternmost region of the Imperium, home to Ultramar, the Tau Empire and the Eastern Fringe. Here's what's out there.
The Imperial Palace
The Imperial Palace is the Emperor's seat and the Imperium's capital city on Terra. Learn its history, scale, defenses, and role in the Horus Heresy.
All 181 entries
Every page in this section, A to Z. Titles starting with "The" are filed by the next word.
A
B
C
D
F
H
I
M
N
O
R
S
- The Salamanders' Home World Nocturne
- The Sanctum Imperialis
- The Sangua Terra
- The Sautekh Dynasty's Realm
- Sector Solar
- Segmentum Obscurus
- Segmentum Pacificus
- The Segmentum Solar
- Segmentum Tempestus
- Segmentum Ultima
- The Sol System
- Solemnace
- Sotha
- The Sothan Beacon
- Sthenelus System
- The Szarekhan Dynasty's Realm
T
V
Recently added
The newest entries in this section.
The underhive is the lawless, ruined underside of a hive city, where gangs rule, relics hide, and survival means fungi, barter, and blades.
Ultima Segmentum is the largest and easternmost region of the Imperium, home to Ultramar, the Tau Empire and the Eastern Fringe. Here's what's out there.
The Sthenelus System is Medusa's home star system, nine worlds orbiting an angry sun, and the Iron Hands' contested corner of Segmentum Obscurus.
Solemnace is Trazyn the Infinite's tomb world and gallery, a planet-sized museum packed with stolen relics, stasis-crypts and Canoptek guards.
Rynn's World is the Crimson Fists homeworld, nearly destroyed by an Ork Waaagh! in 988.M41. Learn its history, geography, and the invasion.
The Ravenspire is the Raven Guard fortress-monastery on Deliverance. Learn its history, from Black Tower to the Forbidden Apothecarion and Corax's Eyrie.
Pythos is a jungle death world in the Pandorax system, setting of The Damnation of Pythos. Learn about its deadly wildlife, mining colonies, and role in the
Prometheus is the Salamanders' fortress-monastery moon and a Forge World of the Adeptus Mechanicus. Learn its role, the Pantheon, and the Time of Trials.