[1][2] Brutal Doom adds many gameplay features, such as blood splattering, allied Marines, an updated particle system, the ability to drive vehicles such as tanks,[3][4][5] stealth kills, headshots, and various "Mortal Kombat-esque fatality animations".
[7] The mod includes new and updated guns, such as a flamethrower, the demonic Unmaker, assault shotguns, new rifle types, a grenade launcher and some weapons used by enemies, specifically a Revenant's missiles or a Mancubus' flame cannon.
In addition the weapon mechanics have also changed, with certain guns requiring reloading, having recoil, and iron sights or scopes.
[12] TechRadar called it "the most modernised, spectacular Doom mod to date".
[17] In 2021, Brutal Doom surpassed five million downloads on Mod DB.