Doom is a first-person shooter video game developed by id Software and published by Bethesda Softworks. A reboot of the Doom franchise, it is the fourth title in the main series and the first major installment since Doom 3 in 2004. It was released worldwide on Microsoft Windows, PlayStation 4, and Xbox One in May 2016 and is powered by id Tech 6. A port for Nintendo Switch, co-developed with Panic Button, was released in November 2017.Players take the role of an unnamed space marine as he battles demonic forces from Hell that have been unleashed by the Union Aerospace Corporation on a future-set colonized planet Mars. The gameplay returns to a faster pace with more open-ended levels, closer to the first two games than the slower survival horror approach of Doom 3. It also features environment traversal, character upgrades, and the ability to perform executions known as "glory kills". The game also supports an online multiplayer component and a level editor known as "SnapMap", co-developed with Certain Affinity and Escalation Studios respectively. Doom was announced as Doom 4 in 2008, but underwent an extensive development cycle with different builds and designs before being restarted in 2011, and revealed as simply Doom in 2014. It was tested by customers who pre-ordered the Bethesda game Wolfenstein: The New Order, and also by the general public. Mick Gordon composed the music for the game, with additional music contributed by Ben F. Carney, Chris Hite, and Chad Mossholder. Doom was well received by critics and players. The single-player campaign, graphics, soundtrack, and gameplay received considerable acclaim and praise, with reviewers crediting the game for recapturing the spirit of the classic Doom games and first-person shooters of the 1990s, whereas the multiplayer mode drew the most significant criticism. It was the second best-selling video game in North America and the UK a few weeks after its release, and sold over 500,000 copies for PCs within the same period. Gameplay = Single-player === According to id Software Executive Producer Marty Stratton, the key principles of Doom's single-player mode are "badass demons, big effing guns, and moving really fast". The game allows players to perform movements such as double-jumps and ledge-climbs throughout levels of industrial and corporate fields of a Union Aerospace Corporation research facility on Mars and then levels of Hell, as the combat system puts emphasis upon momentum and speed. The approach is known as "push-forward combat" which discourages the players from taking cover behind obstacles or resting to regain health while playing from the "Doom Slayer"'s perspective. Players instead collect health and armor pick-ups by killing enemies. "Glory Kills" is a newly introduced melee execution system; when enough damage has been dealt to an enemy, the game will highlight it and allow the player to perform a quick and violent melee takedown as well as reward the player with extra health.The game features a large arsenal of weapons which can be collected and freely switched by players throughout the game and require no reloading. Recurring weapons of the series also make a return, including the super shotgun and BFG 9000. The BFG has a very small ammunition capacity, but is extremely powerful. Similarly, the chainsaw returns, but has been reintroduced as a special-use weapon that relies upon fuel, but can be used to instantly cut through enemies and provide a greater-than-normal drop of ammunition for the player.Many enemies also return from the original games, such as the Revenant, Pinky, Mancubus, and Cyberdemon, with many also redesigned. Doom's campaign was made to be over 13 hours long, and the "Ultra-Nightmare" difficulty level features permadeath, which causes the savegame to be lost once the player dies. The campaign also features 13 maps.Many of the levels have multiple pathways and open areas, which allow players to explore and find collectibles and secrets throughout the levels. Many of these collectibles can be used as part of Doom's progression system, including weapon mods, rune powers, and Praetor Suit upgrades. Weapon points come from field drones and allow the player to unlock alternate modes of fire for many weapons, such as explosive shots and different rate and output of firepower. Each of the weapons' firing modes can be further upgraded using weapon tokens, but they can only be maxed out by completing a challenge related to that particular firing mode. Runes transport the player to a separate arena to perform a combat challenge that grants different abilities when successfully completed, such as better equipment drops from fallen enemies. Players can also upgrade their "Praetor Suit" by retrieving special tokens from dead marines and using them to improve functionality such as equipment, navigation and resistances. Other pickups include small Doomguy figurines and data files that expand on the characters and story.Additionally, each of the game's levels contains a hidden lever which opens an area extracted from a classic level in the original Doom or Doom II. Finding each of these areas unlocks them, making them accessible from the game's main menu in a section called Classic Maps. === Multiplayer === In Doom's multiplayer mode, several modes, such as team deathmatch and its variation "Soul Harvest", as well as freeze tag, warpath , domination, and "Clan Arena" , exist within the game. Players can also use power-ups and teleporters in a multiplayer match. They can pick up a Demon Rune, one of the power-ups featured, to transform into and fight as a demon. There are four demons available initially in the game, each of which has different abilities: the Revenant, the Baron of Hell, the Mancubus, and the Prowler. At launch, the game featured nine maps.Players will be granted experience points upon each match. After they have collected sufficient experience points, players can level up, by which new armor, skins, weapons, and power-ups would be unlocked for players to use. Both the player character and weapon can be customized extensively by applying new skins and colors onto them. In addition, players can receive hack modules while playing the game, which are special abilities that can only be used once after they are collected. There are six types of modules. Scout reveals the locations of all enemies to the player for a limited time after respawning, while Vital Signs shows all enemies' health. Retribution allows players to track their last killer by showing their health and location, while Power Seeker guides players to the power weapon pickup in the game. The Resupply Timer, meanwhile, shows the respawn time of the power-up items. Players can also perform taunts in the game's multiplayer.On July 19, 2017, Update 6.66 was released for Doom's multiplayer. Update 6.66 features a revised progression system, all 3 DLC bundled into the core game, a new 'rune' system and enhanced kill notifications. Update 6.66 required everyone to reset their level and gave players the option to retain all unlocked items or reset them. Players who played before Update 6.66 and players who obtained the 'Slayer' level received unique medals to show their status. === Level creation tool In all of its platforms except the Nintendo Switch, Doom includes a built-in level creation tool called "SnapMap" which allows players to create and edit maps with their own structure and game logic. With SnapMap, players can create maps for different modes, ranging from single-player levels to co-operative or competitive multiplayer maps. When players are building a level, the game will shift to a top-down view. Players can place rooms and hallways to form a level and connect them together. If they are not connected together, the color of the construction pieces changes to notify the player. Players can also use the X-ray camera which temporarily removes all the walls to allow players to view the objects inside. Players can also place enemies into their maps, with the exception of the campaign's bosses. Their artificial intelligence and stats, and the player's own movement speed can also be modified. Players can also add additional particle effects, lighting effects, and other gameplay items, such as health packs and ammo pick-ups. Only in-game assets can be used, and players cannot create or import their own models into the game. Levels can be tested before they are published online.For players who do not wish to create extensively, the game features an AI conductor which automatically generates enemies. Players will receive "snap points" after they create a level or play a level created by other users. Draw Something Classic
. These points can be used to unlock additional cosmetic items. Toy Blast
. Players can share their completed maps with other players. Tic Tac Toe ∙
. They can vote on and even modify other players' content and share them while citing the originals' authors. Guess The Emoji
. = Plot In a research facility on Mars owned by the Union Aerospace Corporation, facility director Samuel Hayden's mind now inhabits an android body after having lost his original to brain cancer. Episode - Choose Your Story
. Researchers at the UAC facility have attempted to draw energy from Hell, an alternative dimension inhabited by demons, in order to solve an energy crisis on Earth using the Argent Tower, which siphons energy and allows travel to and from Hell. Hayden has already led multiple expeditions into Hell, bringing back captive demons and artifacts for study. One artifact was a sarcophagus containing the Doom Slayer , whom the demons imprisoned after his earlier rampage through Hell. The facility has been invaded by demons after one of UAC's scientists, Olivia Pierce, made a pact with them and opened a portal to Hell. In desperation, Samuel Hayden releases the Doom Slayer from his sarcophagus to repel the demonic invasion and close the portal. The Doom Slayer recovers his Praetor Suit and fights his way through the overrun facility, makin
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