Sentry Array

Where to build a Sentry Array

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).

Each empire can only build one Megastructure.

The planet or star

• Cannot build on an unsurveyed or habitable planet.
• Cannot build on planets that have unresearched anomalies discovered by us or any other Empire.
• Cannot build on a minor planetary body (asteroid or moon).
• Cannot build around a star.
• Cannot build around an astral scar.
• Cannot build on Ring Worlds.
• Cannot build due to existing Megastructure.

The system and the empire

• The system has a starbase
• Cannot build outside Empire borders.
• Cannot build due to existing Megastructure.
• Cannot build in systems that have not been surveyed.
• Cannot build more than one Sentry Array.
• Cannot build more than two Sentry Arrays.

Sentry Array stages

Stage 1

Sentry Array Site

The construction station serves as the base for the future assembly of a Sentry Array.

Build time

1,800 days

Cost

2,500Unity

5,000Alloys — if Not: Uses bio-ships

2,500Alloys — if Uses bio-ships

8,750Food — if Uses bio-ships

Upkeep / month

20Energy Credits

Produces / month

—

Stage 2

Sentry Hub

A state-of-the-art listening post crewed by a permanent staff of astronomers and tactical analysts.

Build time

1,800 days

Cost

2,500Unity

10,000Alloys — if Not: Uses bio-ships

5,000Alloys — if Uses bio-ships

17,500Food — if Uses bio-ships

Upkeep / month

40Energy Credits

Produces / month

—

• +10Base Intel Level
• -5%Hyper Jump Charge Time

Stage 3

Sentry Spire

Oscillating fins arranged along a central spire isolate faint signals from ever-pervasive background radiation.

Build time

1,800 days

Cost

2,500Unity

10,000Alloys — if Not: Uses bio-ships

5,000Alloys — if Uses bio-ships

17,500Food — if Uses bio-ships

Upkeep / month

60Energy Credits

Produces / month

—

• +20Base Intel Level
• -10%Hyper Jump Charge Time
• +1Codebreaking

Stage 4

Sentry Aerials

Massive, static antennas provide an unprecedented boost to raw coverage.

Build time

1,800 days

Cost

2,500Unity

10,000Alloys — if Not: Uses bio-ships

5,000Alloys — if Uses bio-ships

17,500Food — if Uses bio-ships

Upkeep / month

80Energy Credits

Produces / month

—

• +30Base Intel Level
• -15%Hyper Jump Charge Time
• +1Codebreaking

Stage 5

Sentry Array

A complete Sentry Array extends sensor range to cover the entire galaxy.

Build time

1,800 days

Cost

2,500Unity

10,000Alloys — if Not: Uses bio-ships

5,000Alloys — if Uses bio-ships

17,500Food — if Uses bio-ships

Upkeep / month

100Energy Credits

Produces / month

—

• +40Base Intel Level
• -20%Hyper Jump Charge Time
• +2Codebreaking

How to unlock the Sentry Array

Sentry ArrayTier 5 · 24,000

Other versions of the Sentry Array

Ruins the galaxy can start with or a war leaves behind (restoring one is its own chain of stages) and upgrades that branch off the main line.

Ruined Sentry Array (permanently ruined)

Stage 1

Ruined Sentry Array

The shattered remnants of what was once an extremely powerful Sentry Array. This megastructure has been ruined beyond repair.

Build time

—

Cost

—

Upkeep / month

—

Produces / month

—

Ruined Sentry Array (ruined)

Stage 1

Ruined Sentry Array

The shattered remnants of what was once an extremely powerful Sentry Array. Despite its age, the megastructure's antennas are, for the most part, structurally intact. With the right technology and a large amount of resources, the array could potentially be restored to working order.

Build time

—

Cost

—

Upkeep / month

—

Produces / month

—

Stage 2

Sentry Array

A complete Sentry Array extends sensor range to cover the entire galaxy.

Build time

4,800 days

Cost

3,500Unity

15,000Alloys — if Not: Uses bio-ships

7,500Alloys — if Uses bio-ships

26,250Food — if Uses bio-ships

Upkeep / month

100Energy Credits

Produces / month

—

• +40Base Intel Level
• -20%Hyper Jump Charge Time
• +2Codebreaking

Sentry Array: questions