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
1.09b ISK
90d Avg
1.02b ISK
Volume
200 m³
Base Price
5.00m ISK
Jita Market (90d)
Latest Price (2026-06-20)
1.09b ISK
90d Average
1.02b ISK
90d High
2.28b ISK
90d Low
799.90m ISK
Avg Daily Volume
36
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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3.64bRequired 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
Group ID515
Category ID7
Mass1 kg
Volume200 m³
Portion Size1
Meta Level8
Tech Level1
PublishedYes
Recent Prices (Jita)
DatePriceVolume
2026-06-201.09b11
2026-06-191.12b13
2026-06-181.08b13
2026-06-171.13b16
2026-06-161.13b17
2026-06-151.10b14
2026-06-141.10b24
2026-06-131.03b15
2026-06-121.15b21
2026-06-111.13b20
2026-06-10958.98m34
2026-06-09912.66m33
2026-06-08901.47m32
2026-06-07900.12m18
2026-06-06918.64m19
2026-06-05895.31m22
2026-06-04891.29m43
2026-06-03879.37m65
2026-06-02870.00m107
2026-06-01821.20m132
2026-05-31856.65m106
2026-05-30905.57m72
2026-05-29893.30m70
2026-05-28900.61m80
2026-05-27891.60m60
2026-05-26908.18m45
2026-05-25969.16m52
2026-05-24901.87m41
2026-05-23869.83m26
2026-05-22896.36m7