The game's development, and its reveal presentation, has focused mostly on the tenets of the series' fast-paced combat. Stratton outlined the different "ingredients" that went into their favorite series installments, including a cast of over-the-top demonic enemies, huge and inventive weapons - "which you can carry all at the same time," Stratton confirmed - and quick combat, free of regenerating health.

Doom will begin outside of a UAC research facility on Mars, right at the outset of a demonic invasion. In a live gameplay demonstration, we watched a player walk through the facility, shotgun in hand. The gameplay sequence showed off brutal melee attacks and buckets of gibs - each eliciting a roar of approval from the presentation's attendees. The player also seemed to have a few mobile maneuvers, like a double jump, to help them survive waves of enemy demons and leap over large gaps.

Another segment of the demo saw the player rip the arm off of a nearby corpse, and use the appendage to activate a keypad on a locked door. The player also discovered additional weapons during the runthrough, including the iconic double-barrel shotgun and rapid-fire plasma rifle.

Severed limbs were the order of the day — the player had a number of context-sensitive melee executions, allowing him to head-stomp a foe or, in a particularly brutal offing, grab a demon's arms and tear it in half. At the end of the demo, a flying demon got the best of the player, ripping his arms off and beating him to death with them. In another demo, the player ripped out a chainsaw, which allowed him to carve up demons in different directions - through the shoulder, torso or straight down the middle. Rocket launchers separated demons' top-parts from their bottom-parts.

It looked like proper, violent Doom - and was met with deafening applause from the audience with each new weapon, new execution animation and gibbing.