Railjack. Sigma Series. Top-of-the-line. Crew. Four-thousand-eight-hundred-and-ninety confirmed kills.
Railjacks are large 
Orokin-era interceptor spacecraft used by the 
Tenno. These formidable spacecraft feature a plethora of weaponry and defensive systems that allow them to face even large capital ships head-on in direct combat, as well as a "Void engine" propulsion system that allows them to travel independently of the Solar Rail network. Cephalon Cy serves as the Railjack's navigator and executive officer.
While a Railjack can be controlled by a single person, optimal performance requires the ship to be crewed by a full Squad of four, each responsible for managing different areas of the ship including the helm, battle stations, security against intruders, repairs, and putting out on-ship fires. Crew members can fluidly take on any role as needed to keep the Railjack in fighting shape.
Although Railjacks cannot dock directly with enemy vessels, they are equipped with an Archwing Slingshot that allows Tenno to be shot directly at enemy ships to breach the hull and board them. Alternatively, Tenno can also exit into space using their Archwings to fight individually as well as explore areas of interest in space.
Acquisition[]
A Railjack is constructed during the Rising Tide quest, which requires completion of The Second Dream. The building can alternatively be bypassed by purchasing the Starter Railjack Bundle in the Market for 
175, containing a fully built Railjack, 4 Crew Member Slots, and 4 Component & Armament slots; obtaining the Railjack this way will count the Rising Tide quest as completed.
Dry Dock[]
- Main article: Interactive Rooms#Dry Dock
Dry Docks can be found on Tier 2 or 3 Relays (Saturn, Europa, Eris, or Pluto). They can also be built in Clan Dojos. Each player will only be able to see their own Railjack.
The Dry Dock can be used to initiate the Rising Tide quest and to build and customize a Railjack. Players without a clan can utilize Dry Docks in Relays, although they will not have access to any Railjack research. Note that the Dry Dock requires considerably more Dojo space compared to other rooms and its construction can be blocked by existing rooms above and below the desired level. Prepare enough space for the massive hangar by either building a few floors and/or rooms away from other rooms. For reference, you need 3 elevators to match floors, 4 elevators if you want something over/under your dry dock. Note that elevators are not needed to build your Railjack.
| Resource | Ghost | Shadow | Storm | Mountain | Moon |
|---|---|---|---|---|---|
 Credits
|
100000 | 300000 | 1000000 | 3000000 | 10000000 |
 Salvage
|
25000 | 75000 | 250000 | 750000 | 2500000 |
 Circuits
|
850 | 2550 | 8500 | 25500 | 85000 |
 Tellurium
|
15 | 45 | 150 | 450 | 1500 |
 Forma
|
1 | 1 | 1 | 4 | 15 |
|
Capacity -20 |
Energy -6 |
Doors 3 |
Decoration Capacity 400 |
Build Time 24 Hours |
Railjack Build Requirements[]
- Main article: Rising Tide
To initiate the quest, players must receive a Railjack Cephalon blueprint from the Market for 
35,000 and build it in their Foundry.
| Manufacturing Requirements | |||||
|---|---|---|---|---|---|
 5,000 |
 15 |
 15 |
 15 |
 1 |
Time: 1 min |
| Rush: 50
| |||||
 Market Price: N/A
|
 Blueprints Price: 35,000
| ||||
During the quest, Cephalon Cy instructs the Tenno to search for a Railjack component then build it in the Dry Dock. This process repeats until all six components have been found and built, one by one.
Construction of Railjack components are personal builds; Clan participation is only for the Dry Dock itself. Hence, Clan multipliers do not apply. Unlike crafting items in the Foundry, the resources needed for repairing Railjack components can be contributed in stages. Each section repair requires 1 minute to complete in the Dry Dock and cannot be rushed with platinum, thus the complete Railjack requires an absolute minimum of 6 minutes to build.
When completed, the Railjack can be seen floating above the Orbiter, connected by a large transport tube. Players can board their personal Railjack from the Orbiter's bottom deck, in the middle between the three rooms.
Fuselage[]
The Fuselage repair after retrieval and installation requires:
| Manufacturing Requirements | |||||
|---|---|---|---|---|---|
25,000 |
 5 |
 250 |
 1,250 |
 3 |
Time: 1 min |
| Rush: N/A | |||||
| Market Price: N/A
|
Blueprints Price: N/A
| ||||
Propulsion Systems[]
The Propulsion Systems repair after retrieval and installation requires:
| Manufacturing Requirements | |||||
|---|---|---|---|---|---|
25,000 |
 5 |
 250 |
1 |
 1,250 |
Time: 1 min |
| Rush: N/A | |||||
| Market Price: N/A
|
Blueprints Price: N/A
| ||||
Port Nacelle[]
The Port Nacelle repair after retrieval and installation requires:
| Manufacturing Requirements | |||||
|---|---|---|---|---|---|
25,000 |
5 |
400 |
 2,000 |
 10 |
Time: 1 min |
| Rush: N/A | |||||
| Market Price: N/A
|
Blueprints Price: N/A
| ||||
Starboard Nacelle[]
The Starboard Nacelle repair after retrieval and installation requires:
| Manufacturing Requirements | |||||
|---|---|---|---|---|---|
25,000 |
5 |
400 |
2,000 |
10 |
Time: 1 min |
| Rush: N/A | |||||
| Market Price: N/A
|
Blueprints Price: N/A
| ||||
Tail Section[]
The Tail Section repair after retrieval and installation requires:
| Manufacturing Requirements | |||||
|---|---|---|---|---|---|
25,000 |
5 |
 750 |
 300 |
 1 |
Time: 1 min |
| Rush: N/A | |||||
| Market Price: N/A
|
Blueprints Price: N/A
| ||||
Engine Cowling[]
The Engine Cowling repair after retrieval and installation requires:
| Manufacturing Requirements | |||||
|---|---|---|---|---|---|
25,000 |
5 |
10 |
750 |
1,000 |
Time: 1 min |
| Rush: N/A | |||||
| Market Price: N/A
|
Blueprints Price: N/A
| ||||
Total Cost[]
Reliquary Key[]
Upon boarding the completed Railjack, Cephalon Cy informs the Tenno that the ship is lacking a power source. Interacting with the Reliquary Drive in the second level midsection of the ship prompts "Investigate Coordinates On Lua?" This triggers a simple snatch-and-grab mission to collect a Void Key on Lua and extract, avoiding the Corrupted and Sentient enemies along the way.
With the Void Key recovered, the Tenno inserts it into the Reliquary Drive, making the Railjack fully operational. The player is now finally ready to embark on Empyrean missions through the Railjack's navigation console.
Houses[]
While the Rising Tide Quest reward the player with a standard 
Sigma Series Railjack, different Series were created during the Old War by three Houses.
Each House produced its own series of components and armaments. Hence, several items exist in different versions with their own stats, costs, and benefits. Stronger Sigma Series equipment can only be obtained from Clan Dojo Research, while other Series can be found as Wreckage in battles.
Salvaged wreckage needs to be inspected to reveal its stats and then repaired in the Dry Dock before use. Unwanted items can be scrapped manually to be converted into Endo. Scrapped Wreckage that were already repaired will return 80% of the resources used in the repair.
While there is no limit to how many recovered wreckage a player can hold, there is an inventory limit of 30 for inspected wreckage. If there are items inspected beyond this limit, the player will be prevented from joining or hosting Empyrean missions until they are manually scrapped for Endo. Inspected wreckage inventory limit cannot be increased by any means.
Built components and armaments have their own separate inventory with a base capacity of 8. Two Component and Armament slots can be purchased when this inventory is full for 12.
Notes[]
- Empyrean missions can be joined & completed without a Railjack via a button in the upper right-hand side of the Navigation screen.
- It is possible to scrap excess component salvage without a Railjack by attempting to join a specific mission while over the cap (not through the Join Any Crew button).
- Intrinsics can be allocated and the Plexus can be configured at the front of the Orbiter via a terminal located between Navigation and Syndicates.
- On the upper deck of the Railjack by the rear section, players can find a device called a Reliquary Drive, resembling a cryopod, labeled as "vacant" until the player completes the quest to find its key. The drive contains something that resembles a large finger, obscured by void energies until the key is inserted. If the player stands next to it, they can hear the sounds of knocking, unintelligible whispers, and the voices from The Man in The Wall speaking lines originally from The War Within:
- Hey kiddo.
- Don't forget, kiddo... you're nothing without me.
- Hey kiddo, what took you so long?
- Something's out there, kiddo... watching us.
- You mad at me, kiddo? Did you forget? You owe me.
- Railjacks regenerate Hull (health) at a rate of 2% maximum health per second, thus maximizing health as much as possible will also increase health regeneration since it is percentage-based. For example with 7,349 health the Railjack will regenerate about 147 health per second. With 11,399 Health the Railjack will regenerate about 228 health per second.
Trivia[]
- The player can climb up and walk on top of the Railjack in the Dry Dock, with each piece increasing the walkable area.
- The player can stand on the barges that the Dry Dock workers use.
- It appears that Railjacks have the capability to perform long-distance interplanetary travel without having to use the Solar Rail. This is probably a basis for the name 'Railjack'.
- Like many science-fiction spacecraft, the Railjack uses two separate means of propulsion: a pair of more-or-less conventional thrust engines are housed inside the lateral nacelles, while the faster-than-light Void Engine is mounted axially on top of the fuselage. Concept art shows the thrust engine was originally housed in the Void Engine.
- Cephalon Cy on two occasions refers to a component of the Propulsion systems known as an "Orgone Accumulator": once during recovery mission and, sometimes, when returning to Dry Dock from missions. Orgone is a pseudo-scientific spiritual energy or life force centered around selfish and primal desires, particularly libido, and so-called Orgone Accumulators would supposedly collect this energy for other uses.
- The Propulsion Systems' axial tunnel also serves as a barrel for Archwing Slingshot.
- A Reliquary is the proper term for a container that holds a relic related to a saint, indicating that the Reliquary Drive contains or is meant to contain an object the Orokin, Tenno or Dax consider important to someone.
- Evidently, as Reliquary Drive seems to contain a large severed finger, the Drive probably utilizes one of the fingers cut from Albrecht Entrati's otherself, or a replication of those fingers, to perform Void jump.
- When boarding the Railjack, Cephalon Cy will occasionally refer to "cogitators," presumably part of the Railjack's hardware.
- "Cogitation" is defined as thinking deeply, pondering, or mediating. Since Cy states they have been 'defragged,' the term might refer to storage drives.
- This might also be a homage to Warhammer 40k as WH40K's Imperium of Man advanced computers are called "cogitators".
See Also[]
- Rising Tide, the quest that guides the player on building their first Railjack.
