Jump to content

Tek Ciphers

From Citadel Wiki
Early accessCitadel is still in development. Numbers and rules on this page can change between patches. Last checked October 2026.

A Tek Cipher is an item that goes into an open port on a module. The game's description is the same for all of them: "Attaches to an open module port."

Attaching one

  • The module must be identified and have an empty port. Quality and rarity do not matter.
  • Attaching is permanent. A cipher cannot be removed.
  • The module gains the cipher's bonus and its rating, and grows by one cell: the cell the port points at.
  • If the module is fitted, the larger shape must still be legal where it sits. If not, the cipher is refused and not used up.

A cipher's bonus is not scaled by the module's quality, and it stacks like any other fitted bonus. A turret-stat cipher on a turret affects only that turret.

The ciphers

Cipher Tier Bonus Rating
Syn Common Thrust +20% 150
Vel Common Max velocity +12% 175
Ark Common Sensor range +13% 200
Rho Common Armor HP +10% 225
Mux Common Cargo capacity +4 250
Nyx Common Turret damage +12% 275
Erg Common Heat dissipation +16% 300
Ceph Common Signature radius -12% 325
Drux Uncommon Drone output +15% 350
Thal Uncommon Turret range +10% 375
Pah Uncommon Missile damage +15% 400
Ohd Uncommon Armor kinetic resist +8% 450
Boz Uncommon Mine damage +15% 475
Ur Uncommon Barrier HP +25% 500
Kor Rare Turret crit chance +13% 550
Zar Rare Drone bandwidth +1 600
Lucky Cigarettes Rare Salvage luck +15%. This is the safe cipher. 650

The safe cipher

Lucky Cigarettes is more than a salvage bonus. A module with it in any port is kept when the ship is lost, whether the module was fitted or in the cargo hold. Faction-quality modules are the exception: they are destroyed regardless. See Ship loss.

Harmonics

A harmonic turns a Normal module into a Harmonic one, with a set of bonuses of its own.

To make one:

  1. Take a Normal-rarity module that is identified and not Faction quality.
  2. It must have exactly as many ports as the recipe has ciphers. Every recipe uses two, so the module needs exactly two ports.
  3. Fill every port with the recipe's ciphers.
  4. The module's type must be the one the recipe names.
  5. Use a Cipher Key that carries that harmonic.

The harmonic's bonuses apply while the module is fitted, and a harmonic adds 1,000 to the module's rating.

Harmonic Ciphers Module type Bonuses Effect, in the game's words
Thermal Barrier Erg + Ur Shield Max heat +43% Barrier HP per heat
Hull Meld Ohd + Rho Armor Max hull +33% Armor per hull
Optic Transformer Ceph + Ark ECM Heat dissipation +16%, max heat +23% When stationary +400% sensor range
Prime Cascade Nyx + Vel Turret Fire rate 15% faster, tracking +26% On full reload +300% turret crit chance for 5s
Salvage Shroud Mux + Mux Utility Max hull +35%, salvage luck +20% On harpoon -70% signature radius for 10s (30s CD)
Swarm Sustainer Drux + Erg Drone Drone speed +22%, drone endurance +50% On kill: +30% drone endurance for 10 seconds
Trace Amplifier Pah + Ark Missile Missile homing +34%, missile speed +21% Missile range per sensor range
Veiled Dispersion Boz + Syn ECM Mine trigger radius +29%, max speed +14% On mine deploy cloak for 15s (30s CD)
Vent Override Vel + Syn Propulsion Max heat +40% On drift +200% heat dissipation for 10s (20s CD)