

Deep Space Citadel
Deep Space Citadel is a megastructure in Stellaris 4.5.2. It needs the Deep Space Citadel technology. All stages take 3 years and 2,500 Unity (the costs every empire pays).
Where to build a Deep Space Citadel
The game's own requirement line, then the conditions of the first stage (possible) and of the planet or star it goes around (placement_rules).
- This Megastructure cannot be built around a stellar body
- The system has a starbase
- Cannot build outside Empire borders.
- Cannot build in systems that have not been surveyed.
- The system cannot support more than … Deep Space Citadels.
Deep Space Citadel stages
Cost lines with a condition apply only to the empires it names (bio-ship empires pay food instead of part of the alloys).
How it's counted
Totals in the head count only the costs every empire pays: 2,500 Unity.
Deep Space Citadel
This logistical and resource hub serves as a base for the construction of a Deep Space Citadel.
How to unlock the Deep Space Citadel
Who can build it (potential)
- Always
Deep Space Citadel: questions
Where can I build a Deep Space Citadel?
This Megastructure cannot be built around a stellar body
How do I unlock the Deep Space Citadel?
Research Deep Space Citadel.
Source: common/megastructures/19_deep_space_citadel.txt and localisation/english, Stellaris Cygnus v4.5.2 (9776). Build times before build-speed modifiers.