RS-422 Railgun

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Reason: Patch 1.000.300

An experimental weapon which prioritizes armor penetration. Must be charged between shots - choose targets carefully.

— Ship Management Terminal

Unlocked at level 20, the RS-422 Railgun is a support weapon that fires ferromagnetic rods as ammunition via magnetic fields at extreme velocities. The railgun is capable of killing some heavy enemies in a single shot, provided a weak spot is hit.

Stratagem Statistics

  • Call-in Time: 3 sec (7 sec in-game)
  • Uses: Unlimited
  • Cooldown Time: 480 Seconds (8 Minutes)

Detailed Weapon Statistics

RS-422 Railgun
Cooldown 480 sec
Call-in Time 3 s
Capacity 1
Reload Time 1.3 s
Spare Rounds 20
Starting Rounds 10
Rounds from Supply 10
Rounds from Ammo Box 5
Railgun Projectile
Caliber 10 mm
Mass 50 g
Initial Velocity 2000 m/s
Drag Factor 30%
Gravity Factor 100%
Lifetime 5 sec
Penetration Slowdown 0%
Standard 600
vs. Durable 60
Direct Armor AP5 Icon.png Heavy I
Slight Angle Armor AP5 Icon.png Heavy I
Large Angle Armor AP5 Icon.png Heavy I
Extreme Angle Armor AP5 Icon.png Heavy I
Special Effects
Demolition Force 10
Stagger Force 35
Push Force 15
Railgun (100% charge)
Standard 900
vs. Durable 90
Direct Armor AP7 Icon.png Heavy III
Slight Angle Armor AP7 Icon.png Heavy III
Large Angle Armor AP7 Icon.png Heavy III
Extreme Angle Armor AP7 Icon.png Heavy III
Special Effects
Demolition Force 10
Stagger Force 52
Push Force 15

Railgun Self-Destruct
Area of Effect
Inner Radius 0.4 m
Outer Radius 2 m
Shockwave Radius 3 m
Inner Radius 300
Outer Radius 299 - 0
Inner Radius Armor AP3 Icon.png Medium I
Outer Radius Armor AP2 Icon.png Light II
Shockwave Armor AP3 Icon.png Medium I
AoE Effect
Demolition Force 20
Stagger Force 5
Push Force 40

*Overcharging increases damage and armor penetration by up to 50%.

Tactical Information

  • The level of destruction the weapon projects is based on charge rate upon firing, able to decapitate and destroy most light or medium targets easily.
  • Additionally the weapon can be taken off Safe Mode, allowing it to overcharge and potentially fire an even more deadly shot which can blow apart most foes or rip chunks of armor off heavy units.
    • This must be done with caution, however; Safe Mode prevents the weapon from experiencing a catastrophic malfunction. If the charge level exceeds maximum, the weapon will violently tear itself and its wielder apart in an explosion.
    • Overcharging increases total damage and armor penetration by up to 50%, scaling linearly through the overcharge process.
  • The weapon has reduced effectiveness against enemies with high durability such as the head of Bile Titans or the thrusters of Gunships, requiring additional shots compared to weapons with comparable durable damage.[1]
  • The weapon can also be used to effectively engage Chargers by targeting their forelegs. Two fully charged unsafe shots from the Railgun can break the Charger's leg armor, exposing the vulnerable flesh underneath and allows it to be finished off easily with small arms fire.
    • Alternatively, three fully charged unsafe headshots will kill a Charger.
  • Against Bile Spewers and Nursing Spewers however, it's best to aim for the head as the spewer's abdomen can absorb an impressive amount of ballistic damage due to it being a squishy enemy part.

Railgun Alternatives

Depending on the use case, the following support weapons may serve as better alternatives to using the Railgun

Affected By

The following Ship Modules affect the RS-422 Railgun:

Department Ship Module Affect

Administration Center

Donation Access License The Railgun will always drop in with 20 reserve ammo, instead of 10.
Streamlined Request Process Reduces stratagem cooldown from 8:00 to 7:10
Superior Packing Methodology Resupply boxes refill the Railgun with the maximum number of carriable ammo.
Payroll Management System Reduces reload time for the Railgun by 10%.
Bridge Morale Augmentation Reduces cooldown time for all stratagems by 5%.


Streamlined Launch Process Removes call-in time to deploy the Railgun.


Tutorial Video Demonstrating Use of the RS-422 Railgun

Change History




  • Fixed a crash when a player leaves after all their railguns have exploded.



  • Increased armor penetration in both safe mode and unsafe mode.
  • Stagger force slightly reduced.



  • Undocumented: Charging meter visual added to weapon scope.



  • Decreased armor penetration in Safe Mode.
  • Decreased damage against durable enemy parts.