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The USG Ishimura (石村) was the flagship of the Concordance Extraction Corporation and the first Planet Cracker-class ship. The Ishimura was also the first vessel of its size to utilize the ShockPoint Drive for large-scale commercial and deep space expeditions. It was named after Hideki Ishimura, the astrophysicist and inventor of the ShockPoint Drive.

At the time of its last planet crack on Aegis VII, it was captained by Benjamin Mathius.



Built in 2446, the Ishimura was hailed as the savior of Earth and the colonies and a symbol of mankind's innovation. She was created for mining and smelting entire planets and moons. She was also the first ship capable of the "scan and catch technique" for harvesting mineral-rich asteroids by using huge gravity tethers. The Ishimura had the ability to lock onto the asteroids and pull them into her massive collection bays for smelting. Despite being designed primarily as a mining vessel, the Ishimura also functioned as a medical research vessel. She had a dedicated medical wing where extensive research into virology, toxins and genetics was conducted.

Rediscovery of Marker 3A[]

At the time that Marker 3A was discovered on Aegis VII, the Ishimura was 62 years old and had a record of highest number of planet crack operations, having done 34 to date. She was still in remarkable shape with much of her equipment upgraded and many sections refitted to take advantage of continuing advances in technology. Despite her long years of service, the Ishimura was still the pride of the C.E.C. fleet along with her venerable prestige as the largest Planet-Cracker class ship. When the C.E.C. learned about the Aegis VII Colony's discovery of the Marker, the Ishimura was dispatched to recover the Marker and transport it back to Earth. Upon arriving at Aegis VII, the Ishimura’s commanding officer and a devout Unitologist, Captain Mathius gave a no-fly order with the exception that the Marker, all related data and corpses should be moved to the Ishimura. Once this was accomplished, the crew of the Ishimura began planet crack operations with the cover put in place to hide their true agenda.

The Ishimura arriving at Aegis VII.

Coinciding with the planet crack, the Ishimura briefly lost all contact with the colony. Once contact was re-established, the crew discovered that the entire colony was being slaughtered. Further contact with one of the mining teams revealed nothing about the colony's fate as they were killed by unknown hostiles. Several survivors attempted to reach the Ishimura using the colony's remaining shuttles. After navigating through the debris field created by the planet crack, the shuttles were fired upon by the Ishimura's ADS cannons for violating the no-fly order. In the end, two shuttles successfully reached the Ishimura. The first was flown by Dig Foreman Colin Barrow and crash-landed into the hangar bay, and the second was flown by Gabe Weller and crash-landed on the hull near the Crew Deck.


Unknown to Barrow, an Infector had boarded his shuttle and infected his wife's corpse. After Barrow was killed and his shuttle crashed, his wife, the Infector and presumably a newly infected Colin Barrow escaped into the Ishimura's ventilation system before security could arrive. The Infector made its way to the Morgue where it changed at least twenty corpses into Necromorphs which made their way around the ship.

The crew was attacked by the Necromorphs while they were on their daily routines. There were only a few reported incidents at first, but word about the danger quickly spread throughout the Ishimura. Some men and women had jobs that they were forced to continue despite the obvious danger in order to keep the ship stabilized, but these stalwart crew members did not last long and the ship slowly began to malfunction as an effect of nobody monitoring it. It finally became obvious that the entire crew was in danger when order around the ship vanished, Nicole Brennan stating "Nobody will tell us what's happening!". The decks that the creatures did not reach were barricaded and stopgapped to hold the creatures back when they attacked.

The Ishimura engaging in its planet cracking operations.

Unfortunately, most of the decks were caught unprepared, presenting easy kills for the Necromorphs due to the vent system and leaving the decks utterly devoid of life. The Bridge as well as the Medical and Mining Decks reportedly held out the longest. The Medical Deck was completely overwhelmed with the badly injured survivors to the point where the medical staff barricaded the injured outside. The injured personnel were killed by the Necromorphs and the creatures eventually breached the barricades and slaughtered any remaining medical staff. The Bridge was also overrun, with the remaining Bridge crew, security and officers making a last stand with their weapons. This was undone by the vent system which provided easy access for the creatures. The Mining Deck, where wandering survivors rallied, lasted longer but eventually fell to the Necromorphs as well.

To make matters worse, an unknown force had jettisoned the ship's complement of escape shuttles after Captain Mathius' death at the hands of Dr. Kyne, leaving the remaining crew trapped on board the Ishimura with no way out. As a last desperate resort, Kyne disengaged the ship's engines, causing it to begin a slow descent toward the planet in the vain hopes that it would burn up in the atmosphere and kill everything inside, thus preventing the rest of humanity from coming into contact with the Marker. The Chief Security Officer, Alissa Vincent, intercepted him and tried to stabilize the engines in a bid to rescue the remaining survivors. However, Vincent failed in this and sacrificed herself to launch a distress signal into space instead, unaware that the Marker manipulated her into luring more people to Aegis VII with a hallucination of one of her teammates.

The Kellion's arrival[]

Kendra and Hammond observe the Ishimura.

It was at this point that the USG Kellion shockpointed in in response to the Ishimura’s distress signal.

Many of the areas of the ship were covered in Necromorph biomass or damaged resulting in failures in the ship's life support, automated systems and artificial gravity. Nearly all of the exterior lights were also inactive due to the loss of the main power. The ship's self-destruct system was offline as well as most of the other systems. The only viable way to scuttle the ship was to disengage the engines and allow the planet crack load to pull the Ishimura into the planet.

To survive, Isaac Clarke had to repair parts of the ship in some levels, demonstrating that while the vessel was in a deplorable condition, it may yet be saved.

The Ishimura was last seen when Isaac departed toward Aegis VII with the Marker in the Executive Shuttle, leaving its fate for the time unknown.

Post-Aegis VII Incident[]

After the destruction of Aegis VII, the Ishimura was thrown out of orbit into deep space.[6] The Earth Government falsified the details of the Ishimura’s destruction, claiming that the ship was lost to a terrorist attack. The Ishimura was commemorated by the government and the C.E.C., keeping the public oblivious to the ship's real fate to avoid widespread panic and chaos.[7]

Recovery by the Magpies[]

The abandoned Ishimura, drifting in space, mauled by asteroids.

After Isaac's departure from the Ishimura, it drifted aimlessly within the Aegis System. When a group known as the Magpies led by Jessica Li and Stefan Schneider were using a ShockRing to transport minerals, the Ishimura was caught by its event horizon. It was transported to the Magpies' position, destroying their Nest. They stabilized the vessel with gravity tethers and boarded the Ishimura, finding the ship in bad shape. Its hull had been bombarded by the asteroids, destroying entire decks. The oxygen was leaking out and nearly depleted. The ship's ShockPoint Drive was severely damaged and most of the power and artificial gravity was gone due to the damage sustained to the Engineering Deck. Only the emergency power and a few auxiliaries were still functional. The destruction of the Red Marker had caused the entire Necromorph infestation to dissolve into a soupy sludge-like material. Despite this, quarantine lockdowns were in effect all over the ship and the Corruption, though inactive, covered almost everything, leaving the ship a miserable shadow of its former glory.

The Ishimura was apparently deserted, leading the Magpies to embark on an expedition through the ship in search of any valuable equipment. However, following the discovery of several shards of the Red Marker on the outside hull, order collapsed. One of the crew members, Malyech, assaulted his fellow salvager Li over the fate of the shards and had to be confined. Another crewman, Venschiff, was apparently driven mad by the Marker and attacked Schneider only to be killed in the ensuing struggle. Malyech's assistant Copland then left the Ishimura with a shard, planning to betray them to the Earth Government in exchange for a deal.

The worst was yet to come. As the Earth Defense Force and the Oracles closed in on the Magpies' positions, the Necromorphs suddenly reanimated all over the ship. The undead horrors attacked the Magpies, leaving Schneider as the sole survivor. Schneider managed to trick the E.D.F. squad into landing in the Ishimura's Cargo Bay where they were slaughtered by the rampaging Necromorphs. Afterward, Schenider attempted to escape, but the Oracles pursued him, forcing them into a confrontation outside the ship. Due to the intervention of a new Hive Mind, Schneider managed to get back inside and finally escaped through a hatch, leaving the Oracles to their deaths. Schneider recovered their weapons and made his way to the Oracles' stealth shuttle, notifying EarthGov about the Ishimura’s location before shocking out to an unknown destination. The EarthGov ships supposedly shocked in not long after and recovered the Ishimura where it would eventually find its way to the Sprawl.

The Sprawl[]

The USG Ishimura docked at the Sprawl.

Sometime between the three years that Isaac Clarke was interred on Titan Station, otherwise known as the Sprawl, the USG Ishimura ended up docked at the station with EarthGov engaging in a thorough cleanup and refit operation within the ship, ostensibly to wipe all of the evidence of the Necromorph infestation out. The Necromorph infestation aboard the ship apparently dissolved once more after the loss of the Marker shards recovered by the Magpies, leading to its inert discovery by the Sprawl's scientists. However, due to the presence of the Site 12 Marker located within the Sprawl, it was not long before the Necromorph biomass began reconstituting itself. In the weeks leading up to Isaac's escape, the Necromorph presence aboard the Ishimura silently stalked the Sprawl's technicians, leading to mass paranoia and panic within the cleanup crews. By the time of the Necromorph outbreak within the Sprawl, the Ishimura was mostly restored structurally, though the cleanup effort was only partially completed.

Later, an uneasy Isaac returned to the Ishimura, planning to use its powerful gravity tethers to reconnect the Sprawl's Government Sector after Director Tiedemann disconnected it from the station. Discovering the ship's repairs to be incomplete, Isaac journeyed to the Engineering Deck to restore the Gravity Centrifuge which was in the process of being upgraded when the Necromorph outbreak on Titan Station began. Afterward, Isaac boarded the ship's tram system to head to the Bridge only to have his progress halted by an obstruction in the tram tunnel which rerouted him to the heavily-infested Medical Deck. After fighting numerous Necromorphs off and moving through a tram tunnel on foot, he finally arrived at the Bridge. He activated the gravity tethers in order to pull the space track together, making his way to the Government Sector via an escape pod.

The ship was still undergoing its cleanup and refit at the time of the Sprawl Necromorph outbreak, leaving it in a battered yet somewhat recovered state. Protective materials were deployed over the walls, ventilation ducts and the other areas. UV lighting illuminated blood smeared within numerous hallways which were without power. EarthGov also reinstalled several escape pods in the Bridge which Isaac used to exfiltrate the ship and return to the Sprawl. Among several other reinstallations, several updated Stores were put in place likely so the workers could supply themselves if needed while they were working on the ship.

Later, the Sprawl exploded due to Isaac's actions and the Ishimura was destroyed alongside the Necromorph infected station.

Ship Sections[]



The Bridge was the control room from where the Ishimura was navigated and monitored. It consisted of several sections: The Atrium, the main part of the Bridge of the Ishimura; the Captain's Nest which was Captain Mathius' personal observation area; Administration, where the ship's section leaders worked; and Communications/External Access where the Communications Array was located. The various sections were serviced by elevators accessed from the Atrium. The escape pods were located outside the Captain's Nest. The Captain's Nest was a restricted area and only the officers holding the rank of Class 5 were allowed to enter. The controls were all holographic and various stations with holographic displays were present throughout the Bridge. When Isaac entered the main atrium, all displays showed a "System Failure" which was a reflection of the ship's overall state.

Crew Deck[]


The residential area of the ship and a large deck housing numerous sleeper bunks, a mess hall, a Zero-G Basketball court and several small lounges containing chairs and sofas placed around a large holographic display, possibly for means of entertainment. The Executive Lounge and Executive Quarters are located here as the Executive Shuttle.

Isaac arrived at this deck in order to power the Executive Shuttle up by using a Singularity Core. He encountered numerous difficulties such as the misplaced Navigation cards and a lockdown of Block B.

Engineering Deck[]


The section of the Ishimura where various engineers worked at maintaining the ship. This area was responsible for ensuring the correct function of the ship's ShockPoint Drive, the Gravity Centrifuge and the navigation rockets as well as a continual lifting capacity of 525 trillion kilotons. The area was noted for being very dangerous as only the Class 5 Engineers were allowed entry. Unlike the other areas such as the Bridge and Medical Deck, Engineering was very dark and industrial with exposed and dangerous machinery on display. It was divided into three primary areas:

  • Gravity Centrifuge Access: A large chamber that held the Gravity Centrifuge which kept the Ishimura stable. During the time of the Titan Station outbreak, the Gravity Centrifuge was in the process of being upgraded.
  • Fuel Storage: A large compartment for the titular purpose, Fuel Storage was separated into two sections by a mini-tram. This area fed the fuel into the engines and was dominated by a large rotating ring of fuel cells and the main fuel line. This was the darkest area of the deck.
  • Engine Room: A large facility that proudly displayed the Ishimura’s immense engines, several hundred feet in diameter.

Flight Deck[]


It was the location of the main hangars where the shuttles would enter and leave the Ishimura. It contained a fully equipped departure/arrival lounge and had access to the cargo bay, allowing the materials to be loaded into the shuttles for transport. The Executive Shuttle Docking Bay connected to this as well as the Cargo Bay. The Ishimura had multiple docking bays situated all over the ship for shuttles of various sizes, ranging from the massive main hangar bay where the Kellion crashed to the smaller mining shuttle bays such as Docking Bay 17 where the Necromorph infection infested the Ishimura.

Hydroponics Deck[]


The Ishimura’s internal farm which produced the food needed to feed the many workers aboard the ship as well as providing a sustainable production of oxygen. It was typically maintained by the horticulturists such as Elizabeth Cross who monitored the production levels of the food. This deck came under trouble when the Leviathan grew into Food Storage and began polluting the air. It was a massive area, spanning the entire top portion of the Ishimura's two cargo towers, and was divided into 2 primary sections: The multi-level Vegetation Growth Chambers and the centrally located cylindrical Food Storage chamber. Directly before Food Storage was the air quality control and ventilation system, the Station featured a large Hologram screen and controls that indicated air production, ventilation and filtration systems.

Maintenance Deck[]

This Deck was where maintenance was performed on the shuttles and the maintenance shuttles were docked. These hangars could be manually opened in the event of their Control Rooms sustaining damage. The only notable location on this Deck was Shuttle Bay 47 which contained Maintenance Shuttle 23.[8]

Medical Deck[]


The Medical Deck of the Ishimura contained various facilities including: Zero-G Therapy, an Intensive Care Unit, Imaging and Diagnostics, Biolab, Cryo-Lab, Chemical Lab, Morgue and also various research areas and offices of the scientists aboard the ship. The deck was serviced by two trams: One at the main entrance and one at the Cryo Storage entrance. The Medical Deck was divided into three areas: Emergency Ward, Imaging and Diagnostics and the Research Wing. Dr. Kyne's office was located in the Research Wing's ground floor while Dr. Mercer's was located in the Emergency Ward. Before the infestation, the Medical Deck was one of the brightest areas on the ship with virtually all lighting in the medical areas being a vivid white. In 2511, Isaac would have to traverse through here once the tram encountered an obstruction.

Mining Deck[]


The heart of the Ishimura. This was where the asteroids and planet fragments were broken apart and melted for valuable minerals. A 4-level deck, it was the largest deck on the Ishimura. The asteroids were brought in via an entrance on the third level and held in place by the gravity tethers.

Ore Storage Deck[]


Directly below Hydroponics, this deck was where the valuable ore extracted from operations on the Mining Deck was stored in large containment cylinders. It was the area the USM Valor crashed into. The entire deck was basically destroyed when Isaac arrived. The Ore Storage area was instead dominated by the wreck of the Valor. The deck was essentially a gigantic room in Zero Gravity.

Subsections and Systems[]

Doctor Terrence Kyne in the Computer Core.

  • Asteroid Defense System (ADS)
Main article: Asteroid Defense System Cannon
A large fixed Array of Mass Drivers were used onboard many Planet Cracker-class ships. The primary goal of this system was to track and destroy the asteroids automatically, preventing potentially damaging collisions with the ship itself. However, in the event that a part of the Asteroid Defense System went offline, a crew member was required to manually control an offline ADS Cannon.
  • Computer Core
The Computer Core was the central processing area for the Ishimura's databanks. It allowed remote locking and unlocking of various areas, remote disengaging of the ship's engines as well as allowing access to the ship's library. Kendra Daniels barricaded herself here after she and Hammond were attacked by a Leaper.
  • Decontamination Chambers
These chambers could be found throughout the ship protecting important areas such as the Gravity Centrifuge on the Engineering Deck. The purpose of these stations was to cleanse the workers of any bacteria and small debris that could contaminate vital areas.
  • Emergency Shuttles
Due to the Ishimura’s task as a mining ship and its frequent danger, the ship was equipped with a large compliment of escape pods which could be used to evacuate the ship in an emergency. These escape shuttles counted numbers at fifty. However, when the Necromorph infection reached the Ishimura, the entire shuttle battery was jettisoned with no one on board any of the shuttles. By the time that Isaac Clarke arrived, the only means of escaping the ship was a single escape pod outside the Bridge which had failed to launch due to damage. This pod was promptly jettisoned by Hammond to remove a Slasher. The Ishimura also carried a small compliment of mining shuttles for transportation, but these were either destroyed or also remotely jettisoned by the time that the Kellion arrived.
  • Filtration Systems
The Filtration Systems transported all of the ship's waste to the Water Treatment Facility. The Filtration System was composed of large, interconnected chambers and pipes which ran under various decks such as Medical and Hydroponics. On the ceiling of these pipes are the smaller tubes from which the waste was deposited. Extraction fans and filters are used to remove the fumes, rendering the air breathable. The pipes also contained elevated walkways and doors to allow access without the need to come into contact with the waste. The Filtration System also utilized various air filtration processes to purify the contaminated oxygen or recycle carbon dioxide. This air was dispersed throughout the ship via ventilation systems.[9]
  • Quarantine System
Main article: Hazardous State Quarantine
The important areas on the Ishimura were equipped with sensors which detected contaminants such as Necromorphs. When one or more of these was detected, the area was locked down until the threat was removed. Both the Aegis VII Colony and the Valor also had a similar system suggesting that this was standard among structures and starships.
  • Tram System
Main article: Tram System
Due to the Ishimura's size, a tram system was built into the ship, allowing fast and easy access to each of the ship's sections. However, the system was single rail so a single damaged tram would prevent travel throughout the ship. The floor of the tram's subway could be traversed.


  • According to the artbook that was included in the special edition release of the first Dead Space, the length of the ship was over 5,300 feet (over one mile or 1.6 kilometers) long from stern to bow. The width remained unknown. The height was roughly 1,550 feet (0.47 km).
  • The Japanese meaning of Ishimura was "Stone Village," a title appropriate for the vessel's purpose. Additionally, the presence of Japanese markings throughout the ship, most notably on the ship logo, suggest either heavy Japanese influence or direct Japanese-based construction.
  • 'USG' stood for United Spacefaring Guild.[10]
  • Chronologically speaking, the earliest post-Dead Space in-game sighting of the Ishimura is in the mobile game as it is seen docked to the side of Titan Station during the game's introduction scene.
  • Aegis VII would have been the Ishimura's 35th planet crack and possibly final since it was to be decommissioned a year later had it not been infected by the Necromorphs. The reason for its decommissioning was unknown, though the ship's age may have played a part in the C.E.C.'s decision to retire it.
  • Out of the entire crew, Gabe Weller was the only known survivor. However, he was most likely deceased or at the very least severely injured in Dead Space 2: Severed.
  • The Filtration Systems are where Chapter 6: Nowhere To Hide of Dead Space: Extraction took place and where the Urchin was encountered.
  • The Maintenance Deck was where Chapter 8: In The Hearts Of Men, the first part of Chapter 9: Escaping the Ishimura and Chapter 10: Secrets And Salvation of Dead Space: Extraction took place.
  • At the time of Nicole Brennan's employment on board the Ishimura, the ship was to be decommissioned the following year.
  • In Chapter 10: Déjà Vu on the Ishimura (Dead Space 2), many save points, Stores and Power Nodes from the first game could be found in the same locations on Engineering, Medical and Bridge. While the save stations onboard retained their unique appearance from the first game, they now displayed the Titan Station holograph when activated. The Stores are completely retrofitted and matched the appearance and inventory of those found on the station itself which was a logical development owing to EarthGov's operations on the ship.
  • In Dead Space 2, after activating the tethers in the Captain's Nest, Isaac used an escape pod to get back to the Sprawl. Oddly enough, it was in the same position as the pod that Hammond launched in Chapter 4 of the first game, suggesting that the EarthGov cleanup crews reinstalled the escape pods for emergencies while working on the Ishimura.
  • In Dead Space 2, the earliest sighting of the Ishimura is in Chapter 5: Cold and Cryptic. If you look out the window in the room just before meeting with Daina, its two cargo towers can be seen. It can also be seen when Isaac is knocked out into space by the Tormenter, but only for a split second. The first time that you can see the Ishimura for a long period of time is in Chapter 7: Power from the Sun when the player is required to re-align the Solar Array panels. If the player looks down at the Sprawl, they can see that the Ishimura is docked on one of the three cross over rails connecting the station to Titan. One can also see the Ishimura in Chapter 9: Transportation Preparation by looking through the large window that can be decompressed.
  • The inventor of the ShockPoint Drive engine and source of the ship's name, Hideki Ishimura, was mentioned in the book Dead Space: Martyr as one of Michael Altman's research assistants. It was not stated, but it seemed likely that Ishimura was one of the few who was evacuated from the DredgerCorp research rig.
    • Coincidentally, Hideki Ishimura shared close encounters with the Necromorphs in the presence of the Black Marker and nearly 300 years later, the USG Ishimura would suffer from the same fate.
  • In the game Saints Row: The Third, if you go to the back of the rear platform of any ship in the game and zoom in on the piece of paper on the wall, it would give a list of missing ships. The USG Ishimura was featured on that list as an easter egg.
  • The Ishimura had 50 escape shuttles, which were all launched empty (save for one, damaged) presumably by Dr. Kyne or some unkown saboteur.
  • In the initial loading screen for Dead Space 2, the name of the vessel was misspelled "Ishumura".
  • There was a 2D model of the Ishimura visible if you look hard enough at the middle crossover tube in the first cutscene in Dead Space (mobile).
  • In Dead Space 2, the interior of the Flight Deck was reversed. When entering via the service tram on the right-hand side of the ship, the shuttle bay doors should be to the right (to the front of the ship), but instead they are to the left (to the rear of the ship).
  • The amount of fins on the Ishimura differed. The actual in-game model featured 7 sets of fins while the logo and deck maps featured 9 sets and most concept art featured the ship having 8.



Posters found on board the ship[]


  1. Dead Space takes place three years before the events of Dead Space 2.
  2. "Well, enjoy it while it lasts, you know they're going to decommission her next year."
    —Isaac, Dead Space 2: Chapter 1: Where Am I?
  3. DS2 takes place in 2511, not 2510. See the video log 'Lights Out 2' in chapter 6. The video is timestamped 2/7/2511. Steve's reply on twitter was most likely a typo, the correct date of the first game being 2508.