The 10 Most Powerful Super-Weapons in Sci-Fi Films, Ranked – Screen Rant

From Star Wars’ iconic Death Star superweapon to the unimaginably powerful infinity gauntlet, here are 10 of the most powerful sci-fi movie weapons.
From Star Wars to Terminator, any science fiction film worth its salt spotlights an impressive new piece of technology that dwarfs all others in terms of raw power. Usually, that tech comes in the form of a weapon that plays an integral part of the story or is so noteworthy that it becomes iconic.
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These weapons range from an assault rifle that can destroy a small building to a space station that can destroy a planet, but, in each case, the weapon is something that proves to be a deciding factor for the heroes to utilize or to overcome.
By and large, the ED-209 was an impressive-looking though ineffective machine, but it did manage to almost kill Robocop at the climax of the film. Luckily, Robocop had some heavier firepower when he went for round two with ED-209 in front of the OCP building in the form of the Cobra Assault Cannon.
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Liberated from Clarence Boddicker and his gang, this “state of the art bang-bang” could easily blow up a car, destroy a storefront completely, and obliterate a steel mill office. With this futuristic, military-grade assault weapon, Robocop destroyed ED-209 with one shot!
There are many iconic weapons from the Predator franchise that make the alien’s offensive capabilities formidable enough to take out a whole platoon of jacked-up Marines, but by far its most destructive weapon is its self-destruct device.
Activated when a Yatuja—the name for the Predator’s species—is mortally wounded or nearing defeat, the blast creates a sizeable mushroom cloud of destructive energy that is unknown in nature. Although not nuclear in origin, the blast has been known to create radiation sickness in those exposed and can take out an area roughly equivalent to several city blocks.
Of all the Terminator models to grace the big and small screen, the most powerful is Kristanna Loken’s T-X. Appearing in the oft-maligned Terminator 3: Rise of the Machines, the T-X quickly established itself as superior to the T-800 and T-1000 models through its sheer offensive capabilities.
The T-X is equipped with a built-in circular saw, flamethrower, and plasma rifle. It can access and control any form of machinery. Its metal endoskeleton is covered with a memetic poly-alloy that allows it to mimic whatever it touches as well as maneuver in ways previous models couldn’t. By all accounts, it is the pinnacle of Skynet’s Terminator series.
Tony Stark has a suit of Iron Man armor that makes him ready for every possible battle situation. Although every one of his armor sets comes equipped with the standard jet packs and repulsor rays that make him one of the most formidable Avengers to combat, his ingenuity extends itself to tailored combat scenarios.
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The best example of this would be his Hulkbuster armor, featured prevalently in Avengers: Age of Ultron. Comprised of fortified metal alloys, advanced hydraulics, and the most powerful energy weapons on the planet, the Hulkbuster armor was able to give the MCU’s strongest Avenger a run for his money.
For years, audiences assumed that every xenomorph of the Alien franchise was simply an extraterrestrial life form, albeit an extremely deadly one. However, the recent prequel films Prometheus and Alien: Covenant have revealed that these entities have actually been bio-engineered as weapons to eradicate native species from their homeworlds, including humans from Earth.
Ferociously weaponized, the xenomorph is a deadly predator able to stalk its prey with lethal accuracy. Possessed of a sturdy outer carapace, razor-sharp teeth in two mouths, and knife-like claws, the xenomorph can tear any human being to shreds in seconds. As if that wasn’t enough, the xenomorph also bleeds acid corrosive enough to chew through tough metal. One of these creatures would be enough to kill hundreds, but an entire swarm would spells certain doom for any planetary civilization unlucky enough to house a colony.
For such a pacifist society, The United Federation of Planets has some pretty powerful weaponry with their ships’ phasers and photon torpedos, but by far the most destructive weapon they ever created was the Genesis Device.
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Like most scientific experiments, the Genesis Project started from an altruistic urge to make terraforming simpler by using the Genesis Torpedo to literally create a new planet. However, darker elements in the Klingon Empire planned to use the torpedo on planets that already housed inhabitants, which would have immediately killed off all pre-existing life forms on the planet in favor of its new matrix. With one launch of the Genesis Torpedo, an entire planet’s biosphere can be wiped out and recreated in seconds.
Arguably the most famous ultimate weapon in sci-fi film history, the Death Star certainly made a splash when it appeared in 1977’s Star Wars, reducing the planet Alderaan to cosmic dust with one shot from its immense laser cannon.
The Death Star’s domination of the Star Wars galaxy may have been complete were it not for the small exhaust port that led straight to its power core; an intentional flaw put there by one of the designers that allowed the Rebel Alliance to destroy it at the climax of the film. Achilles’ Heel notwithstanding, there’s no discounting the sheer awesome power The Death Star was able to unleash.
There are many things wrong with Star Wars: Episode VII: The Force Awakens that fans choose to ignore, but it certainly upped the ante when it came to weapons of galactic consequence by introducing the Starkiller Base. The planet Ilum’s vast deposit of kyber crystals afforded it unique energy absorption and redirection properties, which the First Order capitalized on by terraforming the planet into a weapon.
Rechristened “Starkiller Base,” the planet draws power from a star and utilizes it to not only destroy other planets as The Death Star did, but entire solar systems. A weapon of this magnitude is terrifying to contemplate, but, luckily, it took time to charge, which gave the Resistance opportunity to destroy it.
In fiction, time machines are usually built with altruistic purposes in mind like the peaceful study of the past, but, when they fall into the wrong hands, they are quickly weaponized, and to disastrous effects.
Perhaps the best example of this is in Back to the Future, Part II, where Biff Tannen uses the Delorean to change history in his favor. Rather than existing in a reality where he waxes cars for a living, he managed to construct a whole new dystopian world where he’s a corrupt and powerful tycoon and all his enemies have been eliminated. With a devious enough plan, the antagonist of any science fiction film could alter the very fabric of reality if they wanted.
In the MCU, the Infinity Stones have the ability to respectively control Time, Space, Reality, Mind, Power, and Soul. When assembled together in the Infinity Gauntlet, its wielder has the God-like power to do anything they wish, as the villain Thanos infamously illustrated when he snapped half of all life in the universe from existence.
Although he was undone by the ingenuity of the Avengers in Endgame, the truth of the matter is that Thanos could have circumvented that outcome if he had foresight. If he had made full use of the Gauntlet to become fully omnipotent, he could have foreseen the Avengers using the Quantum Realm to defeat him and prepared against it—after all, he wielded the ultimate power in the universe.
NEXT: 10 Sci-Fi Films That Take Place In A ‘Future’ That Has Passed
Julian Beauvais has been a full-time educator for the last 15 years and a part-time content writer, editor, and proofreader for several online companies for the last 7.


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