European box art
|Publisher(s)||Sony Computer Entertainment|
|Director(s)||Mathijs de Jonge|
|Composer(s)||Joris de Man|
|Engine||Havok (game physics)|
Killzone 2 is a first-person shooter video game for the PlayStation 3, developed by Guerrilla Games and published by Sony Computer Entertainment. It is the second main installment in the Killzone series, following 2004's Killzone. Killzone 2 was released worldwide late February 2009.
Similar to its predecessor, Killzone 2 takes place in the 24th century and chronicles the war between two human factions; the Vektans, and the Helghast. The game takes place two years after the events of Killzone and follows protagonist Tomas "Sev" Sevchenko as he and his unit battle the Helghast as the Vektans invade Helghan. Killzone 2 is played from a first-person view and allows the player to use a variety of weapons.
Killzone 2 was widely anticipated prior to its release. It was critically acclaimed by critics and fans, who praised it as a superior title to the original Killzone and an improvement over its predecessor. Additional praise was given to the game's visuals, action, multiplayer modes, soundtrack and atmosphere, although criticism was directed at the narrative. The game's critical and commercial success led to a sequel, Killzone 3, which was released on February 2011.
The game is presented almost entirely from a first person perspective, aside from vehicular combat. Killzone 2 features a "lean and peek" cover system which allows the player to take cover behind an object and then pop out to fire at enemies. The "lean and peek" mechanic stays in first-person view at all times. It is also possible for the player to pilot vehicles at two points in the game: a tank and an exoskeleton. Many classic weapons and vehicles from previous Killzone installments return, such as the M82-G and the StA-52 LAR. The Sixaxis motion control feature is also utilized in performing certain actions such as turning a valve, arming an explosive charge and sniping.
Warzone, the title of the online multiplayer component of Killzone 2 has been developed by Guerrilla Games in conjunction with the game's single-player campaign. The online multiplayer gameplay is class-based, meaning the player can choose a class of character which is specialized for a specific role to better suit the player's needs in battle. There are 7 classes in total, in which the player can mix and match a main and sub ability according to their playing style, and can switch abilities upon death. There are 15 weapons available to the player, most of which cannot be used until the player reaches a certain rank. Two of these weapons are secondary firearms, and a further two weapons, the Boltgun and Flamethrower, are exclusive to the downloadable maps "Suljeva Cliffside" and "Arctower Landing".
Players play as either the ISA or Helghast, with a few gameplay differences. The character model and respawn points, and the "lean and peek" cover systems were removed. Each class levels up with experience gained from killing enemies or completing mission objectives. With enough experience, players unlock new weapons and skills, as well as a new class. Each class has two badges, the Primary badge selects the class and their specified skill. The secondary badge has an extra skill for the specified class but can be swapped to create own custom class.
Warzone plays out through dynamic matches where multiple game types are played in a single round. The game ships with five different game types including Assassination, Search & Retrieve, Search & Destroy, Bodycount and Capture & Hold. Online matches can connect 2 to 32 players, and they can group into six squads of up to four players. If an online match does not have a full 32 players, computer-generated "bots" can be added in to create bigger teams (but only in an unranked match). Killzone 2 also offers a clan system, which allows clans of up to 64 players to compete for "Valor Points", an in-game currency that clans can use to bet on tournaments.
Players can also play offline against AIs with Skirmish mode and unranked online multiplayer, but there is no offline multiplayer mode for splitscreen players.
Eight multiplayer maps are included on disc at release, but Guerrilla has released more maps as downloadable content. 6 more maps have been added to multiplayer since release via downloadable content purchasable from the PlayStation Store.
Two years after the attempted Helghast invasion of Vekta, an ISA fleet led by Colonel Jan Templar is sent to attack Pyrrhus, the capital city of Helghan, with the goal of deposing and arresting Emperor Scolar Visari on charges of war crimes. Among the ISA units taking part in the attack is Alpha Squad, led by Jan's old comrade Ricardo Velasquez. Sergeant Tomas "Sev" Sevchenko, a veteran of the ISA "Legion" battalion, is assigned to serve as his second-in-command.
Tasked with securing Pyrrhus against the fierce resistance of the Helghan Second Army, the team quickly discovers that the Helghast are well prepared for an invasion. Using Helghan's harsh environment to their advantage, they have developed new weapons and equipment, none of which the ISA has ever seen before. Furthermore, the planet's fog-like atmosphere, gritty deserts, and constant storms pose almost as much of a threat to the invaders as the enemy themselves.
Led by Jan's flagship, the New Sun, the ISA bombard Pyrrhus as cover for a massive ground assault on the city. Despite stiff resistance from well-armed Helghast divisions, they steadily advance towards the Imperial Palace, ultimately capturing both Visari Square and the Helghan Military Academy. Just as the main convoy is set to attack the palace, Colonel Mael Radec, commander of the Second Army, activates a network of arc towers hidden beneath Pyrrhus, killing hundreds of ISA soldiers and breaking their momentum.
Dante Garza, a member of Alpha Squad and close friend of Tomas's, retrieves a piece of a destroyed tower and sends it to ISA researcher Evelyn Batton, who learns that the towers are powered by Petrusite, a mineral capable of generating and channeling electricity. She also identifies an old mining outpost on the outskirts of Pyrrhus where the Helghast have been secretly extracting it for military use.
While working to restore the outpost's communication antenna, Tomas and Rico are separated from the rest of Alpha Squad, allowing Radec's men to capture them. The two fight their way through the refinery where the captives were taken, stumbling upon an interrogation overseen by Radec himself. Oddly enough, he demands that Evelyn give him the launch codes to a set of stolen nuclear warheads in Helghast custody. Rico loses his temper and surprises Radec, saving the captives but leaving Garza mortally wounded. Blaming him for his friend's death, Tomas and the squad return to the New Sun.
Before Garza can be properly mourned, an elite Helghast battalion led by Radec mounts a surprise attack on the fleet, boarding or destroying several ships including the Sun. The ship's crew manages to evacuate, but Radec reaches the bridge and executes Jan and Evelyn, downloading the codes before they can be deleted. With the last of his strength, Jan maneuvers the ship to crash into the center of Helghan's Petrusite distribution grid, causing it to explode and disrupt the arc network.
Seizing the opportunity, the survivors attempt to regroup, only to witness Visari detonate the warheads over Pyrrhus, destroying it and killing both the entire population and most of the remaining ISA forces.
With ISA officer Captain Narville leading an offensive on the remnants of the Second Army, Alpha Squad breaches the palace, where they encounter Radec and the imperial guard. After a pitched battle, the wounded commander and his men commit mass suicide out of disgrace, clearing the way to Visari's throne room.
As Tomas moves to arrest him, Visari gloats that he has still won, as the Helghast are now united against the ISA, and without him, they cannot be stopped. Overcome with guilt, Rico kills him on the spot.
Weary from fighting, Tomas exits the palace and sits on the steps. Above him, a large armada belonging to the Helghan First Army begins its attack on what is left of the ISA.
- Sergeant First Class Tomas "Sev" Sevchenko is the main character of Killzone 2, and part of the ISA Special Forces Alpha Team. He is a withdrawn and unusually contemplative man. At the age of 25, he's already been in several successful campaigns, but they've also exacted a toll on him. He's an imperfect soldier in a perfect army. He is voiced by Demetri Goritsas.
- Corporal Dante Garza is a member of the ISA Special Forces Alpha Team. Smart-mouthed and young, Garza is a loyal, optimistic, and trusty soldier who has earned his elite status. A close companion of Sev, the pair have served together in several campaigns before being picked for Alpha.
- Master Sergeant Rico Velasquez is a veteran of the ISA. He is a human tank who prefers to shoot first and ask questions later, if at all. He is all attitude, but despite this, he has a good heart. Rico prefers an up-front fight and is a character of extremes; he gets agitated easily and does not refrain from taking action. During the orbital defense platform crisis, Rico was left stranded by a brutal Helghast attack and consequently befriended Templar, Luger, and Hakha. Later, he became embedded with Alpha Team to spearhead the invasion on Helghan’s capital, Pyrrhus.
- Corporal Shawn Natko is the demolitions expert for the ISA Special Forces Alpha Team. An experienced soldier of the same generation as Rico, Natko made a steady rise through ISA ranks before joining Alpha Squad.
- Colonel Jan Templar is the commander of the ISA fleet and the cruiser New Sun. Protagonist of Killzone and Killzone: Liberation, he leads the invasion of Helghan from the sky without actually being in the field.
- Scolar Visari is the ruler of Helghan. He is responsible for the re-militarization of the Helghan troops after their defeat following the First Extrasolar War. Visari previously succeeded in launching an invasion on one of the ISA's colonial planets, Vekta, to avenge what he sees as the abandonment and abuse of the Helghast. He is voiced by Brian Cox.
- Colonel Mael Radec' is the commander of the Helghast Imperial Guard, Visari's personal guard, and defends the planet Helghan. He is shown to have a desire for killing, and prefers action rather than planning. Determined and ruthless, he is called the hound of Visari. He is voiced by British actor Sean Pertwee.
- Weapon Specialist Evelyn Batton is Templar's assistant. She focuses on the technical aspects of the ISA's nuclear weapons and knows the codes to the nuclear weapon "Red Dust" which has been seized by the Helghast. She joins Alpha Squad to help reclaim it in one mission of the game.
At E3 2005, Killzone 2 was debuted with a trailer depicting soldiers landing in a hostile war-zone on Helghan and fighting Helghast forces. Critics in the media argued that the trailer shown at the trade show did not show actual gameplay footage, as its high level of visual detail has been argued to be impossible to render in real-time on the PlayStation 3 and the audio mix of the trailer was slightly delayed. SCEA's Vice President, Jack Tretton, stated that the footage of Killzone 2, that was believed to be pre-rendered, "is real gameplay everybody's seeing out there". Several days later, Phil Harrison, SCE Europe's Vice President of Development, stated in an interview that all of the footage of PlayStation 3 games at E3 2005 were "running off video" which was "done to PS3 spec". Further interviews eventually revealed the trailer was indeed a "target render", a prerendered video showing the developer's goals for the finished product.
At the Game Developers Conference in 2007, a Killzone 2 teaser was shown behind closed doors, and was never released to the public. It featured various battles, destructible environments, and lighting effects among others. Killzone 2 was shown to a panel of journalists at a special pre-E3 2007 event in Culver City, California, and then the next day to the public at Sony's E3 press conference. An in-game trailer showing real-time gameplay of Killzone 2 was also released, along with several videos of extended gameplay. A number of media outlets since E3, such as the BBC, have referred to Killzone 2 as being "one of the most cinematic and immersive games ever produced on a console." At the Leipzig Games Convention in 2007, Killzone 2 was presented in playable form to the media. It was the same demo level as shown at E3 2007, although journalists were allowed to play it hands-on. At Sony's PlayStation Day 2008, the first level in Killzone 2’s single-player campaign was presented, named "Corinth River".
Michal Valient, a Senior Programmer at Guerrilla Games, presented details of their Killzone 2 proprietary game engine at a Developers Conference in July 2007. As with many other titles published by SCE, including LittleBigPlanet and Infamous, Killzone 2 uses a deferred shading engine which enables far greater control over the game's characteristic lighting palette, while maximising processor throughput and limiting shader complexity. Other games to use similar approaches include Rockstar Games' Grand Theft Auto IV and GSC Game World's S.T.A.L.K.E.R.: Shadow of Chernobyl. However, this approach does create some additional problems; notably with respect to anti-aliasing and transparencies. The former was solved using a MSAA Quincunx (multisample anti-aliasing) solution, and the latter by the addition of a standard forward rendering path. The game's graphics were universally praised by critics.
The animation was done in Maya 8.5 with some motion capture animations tweaked in MotionBuilder. 3D artists, animators and level designers used Maya as their production environment, which is unusual considering that most 3D games are produced using 3ds max. A large library of custom Maya tools and scripts was created to support these different disciplines. Tools like "Hyperion", a lightmap rendering software, were used in place of Maya’s viewport rendering software. In-game animation was assisted with another tool they created called "AnimationBlender" and particle effects were edited using a tool called "Particle Editor". They also created a tool called "ColorTweaker", which gave them the possibility to do color correction on the PS3 in real-time.
Most of the animation was done using motion capture with some animations, reload animations for example, done by hand. Facial animation was done using blendshapes with bones for the jaw and the eyes. Lead tech artist, Paulus Bannink, explains that "The main reason for going with blendshapes was the relative ease with which they can be transferred to different faces, it would also provide a more artist friendly way of editing the facial animation rig.". The cut scene facial animation was done using marker motion capture. In game dialog was done generically using MotionBuilder after audio files were plugged in. The game was developed not only by artists in Amsterdam, but also by people living in New Zealand, Australia, Japan, Korea, the UK and the US. The data files, gigabytes in size, were sent over the internet.
|Killzone 2 (Original Soundtrack from the Video Game)|
|Soundtrack album by Joris de Man|
|Released||October 19, 2009|
|Genre||Orchestral, Video game soundtrack|
The score to Killzone 2 was composed by Joris de Man, who scored 60 minutes of in-game music and 30-minutes of live orchestral score for the game, recorded at Abbey Road Studios in London, with the Nimrod Studio Orchestra. The score was produced and mixed by Rich Aitken, regular mix partner for Joris de Man and Marc Canham, at Nimrod Productions.
|Killzone 2 (Original Soundtrack from the Video Game)|
|1.||"Opening - Birth of War (Retribution)"||3:40|
|2.||"The Second Helghan March (Helghan Forever)"||2:21|
|4.||"Bridge is Down"||1:47|
|6.||"Protecting the Convoy"||3:14|
|7.||"Flight into Blood Meridian"||0:45|
|8.||"Fight Your Way Through"||3:21|
|10.||"An Unexpected Guest"||0:58|
|11.||"The Police Station"||2:33|
|12.||"Resistance on the Bridge"||0:53|
|13.||"Taking the Bridge"||3:03|
|16.||"Fight the A.T.A.C."||1:59|
|17.||"A Day of Mourning"||2:36|
|19.||"Next Stop Tharsis Refinery"||2:26|
|20.||"Question Time with Radec"||1:18|
|21.||"Dante Garza RIP"||1:58|
|23.||"Templar's Last Stand"||3:45|
|26.||"Radec's Personal Guards"||3:10|
|28.||"End Credits Suite"||8:07|
|29.||"Fight the A.T.A.C. (Remix)"||1:12|
Beta access was given to a select number of North American and European PlayStation Network subscribers. The beta consisted of three online multiplayer maps; "Blood Gracht" (small), "Radec Academy" (medium) and "Salamun Market" (large), with unlockable ranks and character classes ("badges"). Beta testers had their own statistics and have the ability to enter clan competitions. Beta access was private and thus could not be shared with other PlayStation Network accounts. Also, beta testers are tied with Sony Computer Entertainment Inc. by a non-disclosure agreement; therefore they were not allowed to reveal contents of the beta experience. A technical demo of one of Killzone 2's TV commercials, known as the "Bullet" trailer, was released on the PlayStation Store on April 2, 2009. The demo features the commercial itself, the ability to shift camera angles and film speed, and several commentaries from key development staff at Guerrilla Games.
On February 5, SCEE released a single player demo of Killzone 2 on the European/Oceanic PlayStation Store. The demo includes the first two sections of ‘Corinth River’ (the first level of the game) as well as the tutorial sequence from the final game. A demo card, granting access to a Killzone 2 demo was also offered to US gamers who pre-ordered the game at GameStop. The US demo was also made available to those customers on February 5, 2009. In the North American version of PlayStation Home, if users found an avatar dressed in a Helghast costume, the avatar with the Helghast costume would give that user a code for the demo. This occurred on February 16, 2009. On February 26, the demo was made available for download from the PlayStation Store in North America.
In the North American version of PlayStation Home, if users pre-ordered Killzone 2 from Amazon.com, users received free male and female I.S.A. and Helghast uniforms for their avatar. In the European version of PlayStation Home, if users participated in the "Killzone AM" event that took place on Saturday March 28, 2009 at 11 am CET for one full round, the Home Managers gave the participants a code for the Killzone 2 uniforms. Requirement was that users had to have a United Kingdom PSN account. For a limited time in Japanese Home, users received an I.S.A. uniform for watching the Killzone 2 trailer and answering a questionnaire. To get the Helghast uniform in Japan, users had to do a pre-order. In Home's shopping complex, there are fourteen — seven for male and seven for female — Killzone 2 themed shirts available for purchase as well as the Helghast Tactician uniform. A costume for Radec was released on March 4, 2010 to the European Home and has been released in the North American.
Guerrilla Games have released a Killzone 2 themed apartment called the "Visari Throne Room" for Home. The Visari Throne Room apartment is based on the throne room inside Visari's Palace from the final mission of Killzone 2. For the Visari Throne Room, there are five pieces of furniture based on actual palace furnishings from Killzone 2: two types of Visari-style chairs, an administrative desk, a plant container with authentic Helghan vegetation, and a freestanding painting which portrays an important moment in the colonial history of the Helghast. The Visari Throne Room and matching furniture were made available to the European Home on July 2, 2009, the North American on August 27, 2009, and the Asian and Japanese Home on October 9, 2009.
On April 10, 2009 Hermen Hulst, Managing Director from Guerrilla Games announced on GameTrailers TV that Killzone 2 will be getting a DLC map pack named "Steel & Titanium" which will contain two new maps called Wasteland Bullet and Vekta Cruiser. With new gameplay elements and strategic twists. The first DLC map pack was released on Thursday, April 30. Hulst stated that the next Killzone 2 DLC map pack that they will be releasing will have a 'Retro Vibe' to it.
The second map pack was officially announced on May 20, 2009 as "Flash and Thunder", and features two maps previously seen in Killzone called "Beach Head" and "The Southern Hills". Both maps followed the first map pack by bringing new gameplay elements and strategic twists; Beach Head, the wide open battlefield, with rain-filled trenches, and Southern Hills with its intermittent nuke explosion. It was released on June 11, 2009. Both map packs have twelve trophies that go along with them, six for each map.
On July 10 the third map pack was officially announced, even though Sony stated that there were no plans for a third pack. The DLC "Napalm and Cordite" was released on July 23, 2009, it contained two new maps "Suljeva Cliffside" and "Arctower Landing", in addition to the maps the Flamethrower and the Boltgun both from singleplayer made their debut in multiplayer. The Flamethrower is found in the Suljeva Cliffside map and the Boltgun is found in the Arctower Landing map. A multiplayer map pack bundle was also released to coincide with the release of Napalm and Cordite, containing all six maps from the DLC packs, for the price of four maps. The downloadable content pack three has eight trophies that go along with it, four for each map which are for the new weapons. With the fifth anniversary of the original Killzone taking place, the map pack "Flash & Thunder" was reduced in price in North America and Europe.
Reception and sales
Killzone 2 received critical acclaim upon release. Critics praised the graphics, presentation, intense action, gameplay, and multiplayer, with criticism aimed towards the story and characters. The game received a GameRankings score of 90.44%, and a score of 91 out of 100 on Metacritic.
Australian Official PlayStation Magazine gave Killzone 2 a 10/10, and the game was said to have "amazing, fluid graphics and animation" as well as "beautifully constructed levels and intense sweaty-palmed action." The review concluded saying "Killzone 2 is the best console first person shooter ever made". In their February 2009 issue, the U.S. version of Official PlayStation Magazine gave Killzone 2 a score of 5/5, stating players "will instantly tag this sequel as a powerful contender for best game of 2009." In the February 2009 issue of the Official UK PlayStation Magazine, they awarded Killzone 2 a 9/10 with the editor Tim Clark stating, "The most surprising thing isn't the visuals - anyone who's seen recent footage will know it's the most handsome thing on the system - but the fact it's got the gameplay to match".
GamePro gave a perfect score, praising graphics technology and multiplayer depth. In their review, Edge gave Killzone 2 a 7/10, praising the online multiplayer, attention to detail, "unparalleled graphics" and the pacing of the single-player campaign, but included criticism of the game's use of "gameplay clichés" and its weak storyline and characters.
GameSpot did not review the game until after its release so that they could experience its online multiplayer features in more depth. Reviewer Kevin VanOrd gave Killzone 2 a 9/10 saying: "Killzone 2 boasts amazing visuals, an intense campaign, and extraordinary online play that will keep you coming back for more." but described the game's story and characters as "forgettable" and said that the motion controls seemed "tacked-on".
The debut sales of Killzone 2 in the United States were 323,000 within 48 hours of launch. The game failed to meet expectations in March and April, when it sold 296,000 and 58,000 units respectively; by the beginning of May, the game had sold 677,000 copies in the United States. Killzone 2 debuted at number one in UK sales to become the fourth fastest-selling Sony published title ever. In Japan, the game debuted at number 3, selling 41,000 units. On April 16, 2009, Sony announced that sales of Killzone 2 had surpassed one million worldwide.
Killzone 2 won 'Best PS3 Shooter' from IGN. It won 'Best Competitive Multiplayer', 'Best Sound Design', 'Most Improved Sequel', and 'Best Shooter' from GameSpot editor's choice. It won 'Best Graphics' in the G-Phoria 2009 Awards. It also took in Game of the Year from Gamereactor. The soundtrack also won gaming's first Ivor Novello Award. In the 2009 Edition of their top ten PS3 Exclusives, ScrewAttack placed Killzone 2 as the fourth best.
- "Killzone 2". Sony Computer Entertainment Europe. Retrieved 2010-12-02.
- "Interview with Steven Ter Heide". GameTrailers. 2008-05-18. Retrieved 2010-12-02.
- "GameTrailers interview". GameTrailers. 2008-07-17. Retrieved 2010-12-02.
- Scammell, David (2008-11-28). "Multiplayer Video Rundown". D+Pad. Retrieved 2010-12-02.
- Scammell, David (2008-11-28). "Multiplayer Maps Preview". D+Pad. Retrieved 2010-12-02.
- "Tomas Sevchenko Biography". IGN. Retrieved 2010-12-02.
- "Demetri Goritsas". IGN. Retrieved 29 September 2014.
- "G4TV's E3 2005 Jack Tretton Interview". IGN. Retrieved 2010-12-02.
- Fahey, Rob (2005-05-19). "E3: SCEE's Phil Harrison talks PlayStation 3". Games Industry. Retrieved 2010-12-03.
- Purchese, Robert (2008-02-28). "Killzone 2 E3 2005 trailer "not false" PlayStation 3 News - Page 1". Eurogamer. Retrieved 2010-12-02.
- Torres, Ricardo (2009-02-27). "GameSpot Killzone 2 GDC 07 Impressions". GameSpot. Retrieved 2010-12-02.
- Roper, Chris (2007-07-11). "E3 2007: Killzone 2 Impressions". IGN. Retrieved 2010-12-03.
- "Killzone 2 E3 2007 Trailer". Sony Computer Entertainment. 2007-09-14. Archived from the original on 2007-09-14. Retrieved 2010-12-02.
- "Killzone 2: Reviews, Trailers, and Interviews". GameTrailers. Retrieved 2009-07-21.
- "State of Play: Killzone 2 hands on". BBC News. 2007-08-03. Retrieved 2009-07-21.
- Miller, Greg (2007-08-24). "GC 2007: Killzone 2 Blowout". IGN. Retrieved 2010-12-03.
- Robinson, Martin (2008-05-06). "PlayStation Day: Killzone 2 Hands-on Update". IGN. Retrieved 2010-12-03.
- "2007 Killzone 2 Deferred Rendering Engine Presentation" (PDF). Guerrilla Games. Retrieved 2010-12-02.
- "GameSpot Video: Killzone 2 Video Review". GameSpot. 2009-02-27. Retrieved 2009-07-21.
- Rizkalla, Peter (2009-03-17). "Killzone 2". CGSociety. p. 2. Retrieved 2009-03-20.
- Rizkalla, Peter (2009-03-17). "Killzone 2". CGSociety. p. 3. Retrieved 2009-03-20.
- "Killzone 2 at E3 Cost $20 Million To Date". SPOnG. 2007-06-26. Retrieved 2009-07-21.
- "Top 10 most expensive video game budgets ever". DigitalBattle. 20 February 2010. Retrieved 15 March 2013.
- "10 Most Expensive Video Game Budgets Ever". knowyourmoney.co.uk. Notice Media Limited. 21 August 2008. Retrieved 15 March 2013.
- Dan Goldwasser (2009-03-02). "Joris de Man scores Killzone 2 at Abbey Road". Scoring Sessions. Retrieved 2009-03-03.
- Steinberg, Scott (2009-04-02). "Killzone 2 "Behind the Bullet" Interactive Demo Available Today". Sony Computer Entertainment. Retrieved 2010-12-03.
- Scammell, David (2009-02-05). "Killzone 2 demo available now". D+Pad. Retrieved 2010-12-02.
- Scammell, David (2008-11-28). "Killzone 2 demo hits Euro PSN this Thursday". D+Pad. Retrieved 2010-12-02.
- Alexander, Jem (2009-02-16). "Helghast invade Home armed with Killzone 2 demo keys". Joystiq. Retrieved 2010-12-03.
- Lee, Garnett (2008-12-29). "Preorder Killzone 2 on Amazon and Get Gear in Home". 1up.com. Retrieved 2010-12-03.
- "MVP Fun Day - Killzone AM!". Sony Computer Entertainment. Retrieved 2010-12-03.
- Zuylen, Victor (2009-06-05). "New Killzone 2 Content Coming To PlayStation Home". Sony Computer Entertainment Europe. Retrieved 2010-12-03.
- "Over 100 New Pieces of Content Releasing This Thursday in PlayStation Home". Sony Computer Entertainment. 2009-08-26. Retrieved 2010-12-03.
- "Major updates on 9th October". Sony Computer Entertainment. 2009-10-09. Retrieved 2010-12-03.
- "Killzone 2 - Visari Throne Room (Japanese)" (in Japanese). Sony Computer Entertainment. Archived from the original on 2009-11-21. Retrieved 2010-12-03.
- Rubenstein, Jeff (2009-04-09). "What's up with Killzone 2 DLC?". Sony Computer Entertainment. Retrieved 2009-07-21.
- "GameTrailers TV". Spike. Archived from the original on 2010-01-05. Retrieved 2009-07-21.
- Bailey, Kat (2009-04-10). "First Killzone 2 DLC Announced". 1UP. Retrieved 2009-07-21.
- Armour, Alex (2009-04-14). "Download Killzone 2 Steel and Titanium April 30th". Sony Computer Entertainment. Retrieved 2009-07-21.
- Rubenstein, Jeff (2009-04-21). "Killzone 2 DLC price and trailer". Sony Computer Entertainment. Retrieved 2009-07-21.
- "Second Killzone 2 Map Pack Detailed: Flash And Thunder". Gaming Union. 2009-05-20. Retrieved 2009-05-20.
- "Killzone 2 "Napalm and Cordite" DLC; Update 1.28 revealed". Gaming Age. 2009-07-21. Retrieved 2009-07-21.
- Downie, Sebastian (2009-07-22). "Killzone 2 DLC "Napalm & Cordite" and Map Pack Bundle Releasing Tomorrow". Sony Computer Entertainment. Retrieved 2009-08-05.
- Ellis, David (2009-02-03). "Killzone 2 Review". 1UP. Retrieved May 2010. Check date values in:
- Staff (2009-02-09). "Killzone 2: The Edge Verdict". Edge. Retrieved 2010-12-13.
- Whitehead, Dan (2009-01-29). "Killzone 2 Eurogamer Review". Eurogamer. Retrieved 2009-01-28.
- "Killzone 2 Metacritic". Metacritic. Retrieved 2009-08-16.
- VanOrd, Kevin (2009-02-27). "Killzone 2 review". GameSpot. Retrieved 2009-02-27.
- "Killzone 2 video review". GameSpot. 2009-02-27. Retrieved 2009-02-27.
- "Killzone 2 Gamesmaster review". Gamesmaster. March 2009. pp. 58–61.
- "Killzone 2". GameTrailers. 2009-02-09. Retrieved 2009-02-02.
- Miller, Matt (2009-09-22). "Game Informer: Killzone 2 Review". Game Informer. Retrieved 2009-07-21.
- "Killzone 2 Review". GameZone. 2009-02-02. Archived from the original on 2011-07-24. Retrieved 2009-02-02.
- Haynes, Jeff (2009-01-29). "Killzone 2 Review". IGN. Retrieved 2009-01-30.
- "Review: Killzone 2". Play. 2009-02-04. Archived from the original on 2009-02-07. Retrieved 2009-02-08.
- "Killzone 2 on Game Rankings". GameRankings. Retrieved 2013-08-16.
- Bradley, Dandri (2009-01-14). "OPM UK Reviews Killzone 2 And Gives It A 9/10". DLB Network. Retrieved 2009-01-18.
- Shaw, Patrick (2009-02-02). "Killzone 2". GamePro. Archived from the original on 2009-02-05. Retrieved 2009-02-27.
- McWhertor, Michael (2009-02-09). "Killzone 2 Review Party Crashed By Edge Bullies". Kotaku. Retrieved 2009-02-10.
- Elliott, Phil (2009-03-20). "Wii Fit continues US dominance". Games Industry. Retrieved 2010-09-05.
- Jenkins, David (2009-05-20). "Killzone 2 fails to crack 1 million units in US". Games Industry. Retrieved 2010-09-05.
- Jenkins, David (2009-03-03). "UK Charts: Killzone 2 Defeats Halo Wars". Gamasutra. Retrieved 2010-09-05.
- Parfitt, Ben (2009-04-30). "JAPAN: Killzone 2 debuts in third". MCV UK. Retrieved 2010-09-05.
- McWhertor, Michael (2010-04-16). "Killzone 2 Sells 1 Million Worldwide". Kotaku. Retrieved 2010-09-05.
- Langshaw, Mark (2010-05-23). "'Killzone 2' awarded Ivor Novello". Digital Spy. Retrieved 2010-12-02.
- "Top 10 PS3 Exclusives: 2009 Edition". Gametrailers. 2009-11-25. Retrieved 2010-12-19.