Horizon Zero DawnÂ is anÂ action role-playingÂ video game developed byÂ Guerrilla GamesÂ and published byÂ Sony Interactive Entertainment. It was released for theÂ PlayStation 4Â in early 2017. The plot revolves aroundÂ Aloy, a hunter living in a world overrun by machines. Having been an outcast her whole life, she sets out to discover the dangers that kept her sheltered. The player usesÂ ranged weapons, aÂ spearÂ andÂ stealthÂ tactics to combat the mechanised creatures, whose remains can be looted for resources. AÂ skill tree provides the player with new abilities and passive bonuses. The game features anÂ open worldÂ environment for Aloy to explore, while undertaking side and main story quests. Development began in 2011 after the studio completed production ofÂ Killzone 3, with game director Mathijs de Jonge considering it "the most risky" idea of those that wereÂ pitchedÂ at the time. The concept explores the contrast between the beauty and danger of the game's setting. TheÂ game engine,Â Decima, was developed forÂ Killzone Shadow FallÂ and altered forÂ Horizon Zero Dawn. Anthropologists were consulted to authenticate the world's decay over a millennium. The game is the first newÂ intellectual propertyÂ (IP) developed by Guerrilla Games sinceÂ KillzoneÂ in 2004, and also the studio's first attempt at developing aÂ role-playing video game. The soundtrack, led byÂ Joris de Man, contains experimental instrumentation to distinguish the themes. Horizon Zero DawnÂ was well received by critics, who praised the open world, story, visuals, combat, the character of Aloy and the performance provided by her voice actressÂ Ashly Burch, whilst giving criticism to the dialogue, melee combat and character models. It won various awards and accolades and was the best-selling launch of an original IP on the PlayStation 4; selling over seven million copies by February 2018, which ranks it among theÂ best-selling games on the PlayStation 4. An expansion,Â The Frozen Wilds, was released in November 2017. Horizon Zero DawnÂ is anÂ action role-playing gameÂ played from aÂ third-person view.Â Players take control ofÂ Aloy, a hunter who ventures through a post-apocalyptic land ruled by robotic creatures.Â Aloy can kill enemies in a variety of ways: setting traps like tripwires using the Tripcaster,Â shooting them with arrows,Â using explosives,Â and a spear. Machine components, including electricity and the metal they are composed of, are vital to Aloy's survival; she can loot their remains for crafting resources.Â Ammo, resource satchels, pouches,Â quivers; resistance, antidotes, health potions, and traps can all be crafted.Weapons have modification slots for dealing more damage.Â Aloy wears a Focus, a small head piece that scans machines to determine their susceptibilities,Â identify their location, their level, and the nature of loot they will drop.Â One machine, the Stalker, can enableÂ cloaking technologyÂ to avert the gaze of Aloy's Focus scan. Horizon Zero Dawn an exhilarating new action role playing game exclusively for the PlayStation 4 system, developed by the award winning Guerrilla Games, creators of PlayStationâ€™s venerated Killzone franchise. As Horizon Zero Dawnâ€™s main protagonist Aloy, a skilled hunter, explore a vibrant and lush world inhabited by mysterious mechanized creatures. Embark on a compelling, emotional journey and unravel mysteries of tribal societies, ancient artifacts and advanced technologies that will determine the fate of this planet, and of life itself.