Caldari Navy Bastion Module
FactionSiege ModulesCaldari Navy Bastion Module — Faction Siege Module (Module) — EVE Online item
An electronic interface designed to augment and enhance a marauder's siege abilities. Through a series of electromagnetic polarity field shifts, the bastion module diverts energy from the ship's propulsion and warp systems to lend additional power to its defensive and offensive capabilities.
This results in a greatly increased rate of defensive self-sustenance and a boost to the ship's overall damage resistances. It also extends the reach of all the vessel's weapon systems and their rate of fire, allowing it to engage targets at farther ranges.
As a side effect of the ionic field created by the bastion module, beneficial remote repair and capacitor transfer effects are ineffective against the fitted ship while the module is active.
In addition, the lack of power to mobility subsystems means that neither standard propulsion nor warp travel are available to the ship, nor is it allowed to dock or jump until out of bastion mode.
Note: Only one bastion module can be fitted to a marauder-class ship. The increased shield boosting and armor repairing gained from the bastion module is subject to a stacking penalty when used with other modules that affect the same attribute on the ship.
Rapid Heavy Missile Launchers are not affected by bastion modules.
This results in a greatly increased rate of defensive self-sustenance and a boost to the ship's overall damage resistances. It also extends the reach of all the vessel's weapon systems and their rate of fire, allowing it to engage targets at farther ranges.
As a side effect of the ionic field created by the bastion module, beneficial remote repair and capacitor transfer effects are ineffective against the fitted ship while the module is active.
In addition, the lack of power to mobility subsystems means that neither standard propulsion nor warp travel are available to the ship, nor is it allowed to dock or jump until out of bastion mode.
Note: Only one bastion module can be fitted to a marauder-class ship. The increased shield boosting and armor repairing gained from the bastion module is subject to a stacking penalty when used with other modules that affect the same attribute on the ship.
Rapid Heavy Missile Launchers are not affected by bastion modules.
Jita Price
1.27b ISK
90d Avg
1.31b ISK
Volume
200 m³
Base Price
5.00m ISK
Jita Market (90d)
Latest Price (2026-09-20)
1.27b ISK
90d Average
1.31b ISK
90d High
1.75b ISK
90d Low
879.25m ISK
Avg Daily Volume
10
Variations(5)
Imperial Navy Bastion Module
Faction
Republic Fleet Bastion Module
Faction
Federation Navy Bastion Module
Faction
Caldari Navy Bastion Module
Faction
Bastion Module I
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4.47bRequired Skills
Attributes
Structure HP999,999
Velocity Modifier-100.0%
Powergrid Usage80 MW
CPU Usage10 tf
Cycle Time60.0s
Armor EM Resist20.0%
Armor Thermal Resist20.0%
Armor Kinetic Resist20.0%
Armor Explosive Resist20.0%
Shield EM Resist20.0%
Shield Thermal Resist20.0%
Shield Kinetic Resist20.0%
Shield Explosive Resist20.0%
Reprocessing Materials
Properties
Type ID94010
GroupSiege Module (515)
Category ID7
Mass1 kg
Volume200 m³
Packaged Volume200 m³
Portion Size1
Meta Level8
Tech Level1
PublishedYes
Recent Prices (Jita)
DatePriceVolume
2026-09-201.27b2
2026-09-191.42b2
2026-09-181.34b15
2026-09-171.14b7
2026-09-161.36b3
2026-09-151.31b7
2026-09-141.42b4
2026-09-131.38b15
2026-09-121.49b5
2026-09-111.54b4
2026-09-101.52b7
2026-09-091.59b16
2026-09-081.61b1
2026-09-071.58b5
2026-09-061.59b10
2026-09-051.61b6
2026-09-041.58b11
2026-09-031.54b8
2026-09-021.51b4
2026-09-011.59b5
2026-08-311.56b15
2026-08-301.56b13
2026-08-291.49b9
2026-08-281.54b7
2026-08-271.56b9
2026-08-261.55b9
2026-08-251.52b21
2026-08-241.57b6
2026-08-231.61b2
2026-08-221.60b7