Advance Wars: Days of Ruin (known as Advance Wars: Dark Conflict in Europe and Australia, and Famicom Wars DS 2 in Japan) is a turn-based tactics video game for the Nintendo DS handheld game console. It is the fourth and latest installment in the Nintendo Wars series and was released in North America on January 21, 2008; in Europe on January 25, 2008; and in Australia on February 21, 2008. The game is preceded by Advance Wars: Dual Strike, Advance Wars 2: Black Hole Rising, and Advance Wars, although this series is a sub-series of the Nintendo Wars set of games, which dates back to the Nintendo Entertainment System game Famicom Wars in 1988.
Advance Wars: Days of Ruin was designed to have a darker atmosphere and more serious tone in contrast to the previous installments in the series, and features a new storyline independent of the previous games. Set amidst a post-apocalyptic world, the story is centered on the Rubinelle 12th Battalion, one of the surviving remnants of the military of Rubinelle, which had been locked in a century-long war with its rival, Lazuria, prior to a devastating global meteor shower. In the aftermath, the Battalion devotes itself to saving any other survivors of the disaster, despite the shattered nations renewing their war against each other and an uncurable disease ravaging both sides. Meanwhile, a mysterious faction pushes both sides deeper into conflict from behind the scenes, its dark motives kept hidden as it takes advantage of the destruction.
At the HQ or any unit-producing property, COs can join with a specific unit, and automatically promote that unit to Vet level, but at the cost of half of that unit's value. The CO's unit confers an advantage on friendly units within a certain range, the "CO zone." These effects are generally minor advantages such as attack or defense boosts. CO effects are constant and, unlike previous games, only benefit units within the CO zone.
As damage is dealt by units within the CO zone, the CO's power meter fills slightly. As the CO power meter is filled, the CO zone grows larger. When the meter is full, the CO can activate his power which has an effect on the whole battlefield, such as repairing allied units, damaging enemy units, or temporarily altering weather conditions. If the CO unit is destroyed, the CO meter empties and the CO returns to the HQ, able to be redeployed with another unit.
Unit prices have been readjusted and some units renamed, as well as new ones introduced. New land units include the Bike, a highly mobile infantry unit that can capture properties; the Flare, a new tank-like unit that can reveal areas affected by the Fog of War; the Anti-Tank, an indirect-fire unit strong against tanks with the ability to counter-attack during direct attacks; and the War Tank, the strongest ground unit in the game. New air units include the Duster, which has the ability to attack both ground and air units; and the Seaplane, which is produced by Carriers and can attack any unit. Additionally, there is a single new sea unit, the Gunboat, which is armed with a powerful missile salvo that must be resupplied at a Port after each use.
New properties have also been introduced, including temporary properties which are constructed by the Rig unit. Temporary properties cannot build new units like other properties can, but can only be used as stationary resupply bases providing some defensive cover for units, and can be captured. Each Rig unit can construct one of two temporary properties, the Temporary Port and Temporary Airport. Additionally, the new Radar property has been added; when captured it clears a five-tile radius of Fog of War.
New terrain is available in the game: Wasteland, which impedes the movement of ground vehicles; Ruins, which provide a minor defense bonus for ground units and hiding places in Fog of War; Fire, which is impassable and illuminates the surrounding area during Fog of War; Rough Sea, which impedes the movement of naval units; Mist, which provides a defense bonus and hiding places for naval units; and Meteors and Plasma. Plasma forms an impassable wall that no unit can cross, and is generated by Meteors. Once a Meteor is destroyed, any Plasma in contact with it disappears, allowing units to pass. Plasma that is not in contact with a meteor cannot be destroyed.
Upon completing a mission, the player is awarded a rank, starting with the lowest at C and going to B, A and S, which is the highest. The ranks are based on three categories: Power, Technique, and Speed, each determined by meeting certain conditions in a battle. All three categories are rated on a scale from 0-150, and added together to form a numerical ranking from 0-450 in addition to their letter ranking; for example, any score between 300-450 earns an S ranking. Unlike previous games, the numerical score is not converted into points that can be redeemed to purchase new maps and COs; instead, COs are unlocked after the completion of certain missions and all maps are available at the beginning of gameplay.
In a departure from the previous games, which included five factions in the campaign, Days of Ruin features only four: the Rubinelle 12th Battalion (Red), Lazurian Army (Blue), New Rubinelle Army (Yellow), and Intelligent Defense Systems (Black). These factions have different names in the American, European, and Japanese versions of the game.
Following the disaster, which obliterated much of the warring nations of Rubinelle and Lazuria, a young cadet from the Rubinelle military academy named Will escapes the ruins of the academy's mess hall and is confronted by The Beast, a former sergeant gone rogue who leads a small band of raiders. Will is rescued by Brenner and Lin of Rubinelle's 12th Battalion (nicknamed "Brenner's Wolves"), and takes on the group's cause of saving as many survivors of the meteor strikes as possible. During a search, Will discovers a mysterious amnesiac who does not remember her own name, but somehow knows detailed military information. Will later dubs her Isabella, and she becomes a vital part of the battalion as they put an end to the Beast's reign of terror.
One year after the meteor strikes, the 12th Battalion comes into contact with the New Rubinelle Army, and learns of the war raging between the Lazurian Army and the NRA. Brenner reluctantly sides with Greyfield, leader of the NRA, and advances on the Lazurian force, eventually defeating them at Fort Lazuria. Distraught by the ruthless execution of the Lazurian commander, Forsythe, Brenner and the 12th Battalion break the Lazurian prisoners out of an NRA internment camp before they are also executed. While the group escapes, Brenner stays behind and hides in an abandoned city to buy them some time. An infuriated Greyfield orders the use of a new weapon which completely destroys the city, killing Brenner and the NRA troops searching for him. Lin later leads a force against Greyfield, preventing the launch of a wave of deadly Caulder missiles and defeating the NRA once and for all. In the process, Lin personally shoots and kills Greyfield, avenging Brenner's death.
The 12th Battalion is unexpectedly attacked soon after by Intelligent Defense Systems, a private military contractor that had secretly supported first the Lazurians, then the NRA by supplying weapons of mass destruction. Caulder, leader of the IDS, had taken advantage of the world's devastation to carry out horrific biological and psychological experiments that he would have been unable to undertake otherwise, such as creating and spreading a terrible new disease, the Creeper, for the sole purpose of studying the survivor's reactions. Despite numerous demoralizing attacks by IDS and its superbomber, the Great Owl, the battalion survives and eventually pursues Caulder to his main laboratory and fortress, The Nest. In the end, Caulder is killed in the destruction of his lab, and the war is finally brought to an end. One year later, the village of New Hope, founded by the 12th Battalion after the conflict, begins to flourish in the new-found peace. The sun is seen rising above the nearby hills for the first time since the strikes, giving hope of a brighter future.
According to an interview conducted with the game's developers by 1up.com, the new direction the series was taken in was intended to "surprise" audiences and give gamers something "fresh and exciting." During development, some staple elements of the series, such as CO powers, were toned down to allow for more strategic depth, while new units like the Duster and Bike were created to increase the pace of the game. The classic "shop" mode was considered for Days of Ruin, but it was decided that an unlocking system was not compatible with the style of play of busier gamers.
Nintendo Power also gave a positive rating, calling the game "comfortingly familiar" with battles that are "more approachable than before." Online multiplayer was noted as taking "wireless connectivity and Nintendo Wi-Fi Connection further than any game that has preceded it." One of the main flaws of Days of Ruin was identified as a lack of gameplay innovation.
IGN gave the game a high rating for taking risks with its artistic design, but also criticized the loss of old single-player modes in favor of new multiplayer content. The music was described as "typical video game techno-metal," and was consequently the lowest rated part of the game.
In North America, Advance Wars: Days of Ruin sold over 81,000 copies in January after its release, and close to 50,300 copies in February, bringing total sales in the region to over 130,000.