Doom's armor augments his natural physical strength and durability to superhuman levels, to the point where he is able to hold his own against and even overpower superhuman foes like Spider-Man, the Hulk and the Thing in combat, although he tends to rely on long-range tactics when engaging physically stronger opponents. It is also nigh-indestructible, being able to take hits from most superhumans to cosmic beings, and protects Doom from matter manipulation, reality warping and psychic effects. The armor has an arsenal of high-tech weaponry and gadgets integrated within it, including gauntlets that can discharge lasers and force blasts, a defensive force field generator, and a lethal electric shock that can stun or kill anyone who comes into contact with Doom. The armor is self-supporting, equipped with internal stores and recycling systems for air, food, water, and energy, allowing Doom to survive lengthy periods of exposure underwater or in outer space.