Doom is a 2016 game developed by and published by . It is the first major installment in the since 2004's . Players take the role of an unnamed space marine, known as the "", as he battles demonic forces from that have been unleashed by the Union Aerospace Corporation within their energy-mining facility on . The gameplay returns to a faster pace with more open-ended levels, closer to the first two games than the slower approach of Doom 3. It also features environment traversal, character upgrades, and the ability to perform executions known as "glory kills"
According to the game's executive producer , 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 (UAC) research facility on 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 players from taking cover behind obstacles or while playing from the '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, rewarding the player with small health recovery.
The fights also require the player to develop simple tactics. As the game gets harder, the player needs to use the advantages of fight arenas and their bonuses smarter. They also need to decide which enemy has to be killed first and how to move on the battlefield
