Fortress

Army building

Not built directly

Fortress is an army building in Stellaris 4.5.2. It costs 600 Minerals, 50 Volatile Motes and takes 360 days to build, with an upkeep of 1 Energy Credits, 1 Volatile Motes a month. It adds Soldiers, Battle Thralls, Knights and Warrior Drones jobs, depending on the empire. It needs Global Defense Grid.

Cost: 600Minerals50Volatile Motes
Upkeep: 1Energy Credits1Volatile Motes
Build time: 360 days
Housing: —
ID: building_fortress

Jobs Fortress adds

Jobs come from the building's job modifiers; 4.x counts jobs in hundreds (a district adds 100). Variants for other kinds of empires are listed with their condition.

400 Soldiers
Not: Gestalt Consciousness; none of: Has knights zone; none of: Modifier: Thral…
- Owner
  - Not: Gestalt Consciousness
- None of
  - Has knights zone
  - Modifier: Thrall-World
400 Battle Thralls
Not: Gestalt Consciousness; Not: Has knights zone; Modifier: Thrall-World
- Owner
  - Not: Gestalt Consciousness
- Not: Has knights zone
- Modifier: Thrall-World
200 Knights
Not: Gestalt Consciousness; Has knights zone; Not: Modifier: Thrall-World
- Owner
  - Not: Gestalt Consciousness
- Has knights zone
- Not: Modifier: Thrall-World
400 Warrior Drones
Gestalt Consciousness
- Owner
  - Gestalt Consciousness

Cost, upkeep and output

Base values from the building's resources block; conditional variants (nomadic empires pay other resources, for example) open with their condition.

Cost: 600Minerals50Volatile Motes
60Volatile Motes — Nomadic empire
Nomadic empire
Upkeep a month: 1Energy Credits1Volatile Motes

Upgrade chain

upgrades = { } in the files: each building upgrades to the next.

Stronghold
→Fortress

How to unlock Fortress

Global Defense GridTechnology

Shown when (potential)

Owner
- Not: Wilderness empire

Can be built when (allow)

Has upgraded capital
- When Modifier: Resort World
  - Requires Resort Administration on colony.
- When Modifier: Thrall-World
  - Requires Governor's Palace on colony.
- When Planet class: Orbital Habitat
  - Requires Habitat Administration on colony.
- When owner (Wilderness empire)
  - Requires Planetary Root Bundle on planet.
- When owner (Hive Mind)
  - Requires Hive Core on colony.
- When owner (Machine Intelligence)
  - Requires Administrative Array on colony.
- Otherwise
  - Requires Planetary Administration on planet.

In the game

A massive fortress complex with an expanded garrison and training facilities for soldiers.

ID

building_fortress

Fortress: questions

How much does Fortress cost in Stellaris?

600 Minerals, 50 Volatile Motes, 360 days to build; upkeep 1 Energy Credits, 1 Volatile Motes a month (common/buildings, base values).

What jobs does Fortress give?

Depending on the empire: Soldiers, Battle Thralls, Knights and Warrior Drones.

What does Fortress upgrade from and to?

It is upgraded from Stronghold.

What is the ID of Fortress?

building_fortress (common/buildings, Stellaris 4.5.2).

Source: common/buildings/09_army_buildings.txt, Stellaris Cygnus v4.5.2 (9776). Base values before modifiers.