部分原文（而且是远不止一个）说帝国有着十亿甚至几十亿世界。
原文1：'So the Emperortrod these lands, did He?'
'So they claim.
'A billion worlds, and each one says that the Emperor cameto them. I guess the Emperor must have been a Navy man, just like us.'
- Relentless (Novel)
原文2：'War was fadingaway in the Imperium of Mankind. The purposes for which the likes of theAdeptus Astartes had been engineered were dying out. They had done their job.Peace prevailed across a billion worlds.'
- I Am Slaughter (Novel)
原文3：'The Imperiumis vast and amongst it's billions of inhabited worlds there are countless forgeworlds, factories[...]'
- Dark Heresy: Core Rulebook, Chapter V, page 127
原文4：'The ImmortalEmperor’s Legiones Astartes, His Angels of Death – no, that wasn’t right – hisAngels of Death, created to protect mankind from threats beyond thes tars. Abillion, billion worlds; a million, million cultures all compliant – now atwar.'
- Age of Darkness
原文5：You see,Jaghatai, here’s the problem – we were made too well. Nothing in the galaxycould stand against us. We learned that we, and only we, held the destiny of abillion worlds in our own hands.
- Scars
原文6：Nearly all ofthe souls inhabiting the billion worlds of the Imperium of Man are reliant onthe blessings of the Omnissiah in their daily lives.
- Rogue Trader: Hostile Acquisition