Best movies like Swamp Thing

A boy takes in a stray dog, later finding out that its an ultra-intelligent runaway from a genetic research lab. Unbeknownst to him, the dog is being stalked by another escaped creature thats not quite so friendly.

A genetically re-engineered dog develops a psychic link with a monster created in a lab experiment which goes awry.

A crazed scientist experimenting with a rage virus on innocent victims in a laboratory in the woods. When his monstrous subjects escape and vultures devour their remains, they became mutations seeking to feed on humans.

The Swamp Thing returns to battle the evil Dr. Arcane, who has a new science lab full of creatures transformed by genetic mutation, and chooses Heather Locklear as his new object of affection.

The world is under attack by an alien armada led by the powerful Apokoliptian, Darkseid. A group of superheroes consisting of Superman, Batman, Wonder Woman, The Flash, Green Lantern, Cyborg, and Shazam must set aside their differences and gather together to defend Earth.

A team of environmentalists, including a reporter, her camera man, and an environmentalist's famous girlfriend charter a boat and with the captain, sail to a military island. They suspect the island is hosting to illegal activities. Upon arrival, however, they find no one. They finally reach a deserted house, where they find Dr. Susan Richardson, who tells them that everyone on the island is dead, including her father. Richardson's team were working on a compound that could make edible plants grow to super size, however the military intervened with plans of their own. They wanted to test the compound's effects on animals, and proceeded to feed it to several komodo dragons and cobras.

Cancer-terminal tycoon Peter Murdoch's secret Wexel Hall Pharmaceuticals lab has developed a blood orchid extract cure. To examine why it works optimally in snakes, they also bread a super-anaconda strain. But the original pair escapes, leaving a bloody trail of human corpses. Murdoch runs, instructing his staff to clean up. They keep failing and being eaten like unsuspecting locals, some alive, even after enlisting ruthless big game hunter Hammett. The fast-growing pregnant monster sheds its skin, thus disabling the only tracking device they have.

After a wave of reports of mysterious attacks involving people and pets being eaten by the traditionally docile fruit, a special government task force is set up to investigate the violent fruit and put a stop to their murderous spree.

Batman, Batgirl and Robin forge an alliance with the Teenage Mutant Ninja Turtles to fight against the Turtles' sworn enemy, The Shredder, who has apparently teamed up with Ra's Al Ghul and The League of Assassins.

A young woman gets raped by a mysterious man-creature, and years later her son begins a horrific transformation into a similar beast.

A rash of bizarre murders in New York City seems to point to a group of grotesquely deformed vagrants living in the sewers. A courageous policeman, a photo journalist and his girlfriend, and a nutty bum, who seems to know a lot about the creatures, band together to try and determine what the creatures are and how to stop them.

After being driven to extinction, great bloodthirsty dinosaurs come back to life with the assistance of a demented genetic scientist. She plans to replace the human race with a super-race of dinosaurs who will not pollute the planet.

John Brown is a bumbling but well-intentioned security guard who is badly injured in an explosion planned by an evil mastermind. He is taken to a laboratory, where Brenda, a leading robotics surgeon, replaces his damaged limbs with state-of-the-art gadgets and tools. Named "Inspector Gadget" by the press, John -- along with his niece, Penny, and her trusty dog, Brain -- uses his new powers to discover who was behind the explosion.

Investigative journalist Eddie Brock attempts a comeback following a scandal, but accidentally becomes the host of Venom, a violent, super powerful alien symbiote. Soon, he must rely on his newfound powers to protect the world from a shadowy organization looking for a symbiote of their own.

The Turtles and the Shredder battle once again, this time for the last cannister of the ooze that created the Turtles, which Shredder wants to create an army of new mutants.

Bruce Banner, a genetics researcher with a tragic past, suffers massive radiation exposure in his laboratory that causes him to transform into a raging green monster when he gets angry.

After a new cannery introduces scientifically augmented salmon to a seaside town in the Pacific Northwest, a species of mysterious, mutated sea creatures begin killing the men and raping the women.

In the distant future, a federation marshal arrives at a research lab on a remote planet where a genetic experiment has gotten loose and begins feeding on the dwindling scientific group.

When dosed with cosmic rays, four intrepid astronauts are given incredible powers. They decide to form a superhero group called the Fantastic Four to fight their arch-enemy, Dr. Doom.

Crazy old Professor Gangreen has developed a way to make tomatoes look human for a second invasion.

A black hole hits North Wisconsin and opens a door to other dimensions. Giant 15 meter spiders emerge from it, who have an appetite for human flesh! Dr. Jenny Langer and Dr. Vance from NASA try to save the world.

Secretly engineered and blasted into space by government scientists, a vile monster crash-lands back on Earth and begins killing everyone it encounters. As the death toll rises, veteran cop McLemore bravely steps forward to crush the scary creature.

Police assitant Boyle along with tomatologist Kennedi Johnson look into investigations about Killer Tomato attacks, and discover Gangrene plans to brainwash people via TV talk shows to take over the world! Will Gangrene be stopped? Will Johnson become part of a Bacon, Lettuce and Human sandwich?

The year is 1998, six years after the nuke wars reduced the world to rubble and a few bands of wandering survivors. One of these groups stumbles into an abandoned government research facility, where they were working on making the body capable of creating its own amino acids, thus obviating the need for food. They are then attacked by one of the leftover experiments and begin experiencing an attrition problem.

On its way back to Earth, the space shuttle Nautilus passes through a cloud of alien spores causing its sole occupant, astronaut Steve Thomas to transform into a blood-thirsty monster. The shuttle crashes into a swampy region of central Florida, creating a situation which threatens contagion and/or death to all who encounter the shuttle or its mutated pilot.

Agents of an oil tycoon vanish while exploring a swamp marked for drilling. The local sheriff investigates and faces a Seminole legend come to life: Man-Thing, a shambling swamp-monster whose touch burns those who feel fear.

Martin Brundle, born of the human/fly, is adopted by his father's place of employment (Bartok Inc.) while the employees simply wait for his mutant chromosomes to come out of their dormant state.

A shy comic book fan is injected with an experimental serum and starts turning into a spider. When web covered bodies start appearing a policeman starts to investigate the strange case.

Jack Carver, a former member of the Special Forces takes the journalist Valerie Cardinal to an Island to visit her uncle Max who is working in a Military complex on the Island. As they arrive Valerie gets captured by the minions of Doctor Krüger. After the destruction of his boat Jack finds out about the true purpose of the Facilities on the Island, which is the creation of genetic soldiers.

The survivors are saved by the mysterious prophet Short Bus Gus, who seemingly has the ability to control the beasts. He leads them into the sewers as they travel to the big city. Along the way they get help from karate expert Jean-Claude Seagal and learn that the beasts originate from a place called The Hive. Armed with this knowledge, they decide to fight back and destroy the beasts.

An investigation into a serial killer leads two detectives to discover that Dr. Frankenstein and his creature are still alive after two centuries of genetic experiments.

A ship-wrecked man floats ashore on an island in the Pacific Ocean. The island is inhabited by a scientist, Dr. Moreau, who in an experiment has turned beasts into human beings.

Paul Dean has created a deadly parasite that is now attached to his stomach. He and his female companion, Patricia Welles, must find a way to destroy it while also trying to avoid Ricus, his rednecks, and an evil government agent named Merchant.

David, a college student, is looking for a job. He is hired by Dr. Stoner as a lab assistant for his research and experiments on snakes. David also begins to fall for Stoner's young daughter, Kristina. However, the good doctor has secretly brewed up a serum that can transform any man into a King Cobra snake-and he plans to use it on David.

Embittered by Superman's heroic successes and soaring popularity, Lex Luthor forms a dangerous alliance with the powerful computer/villain Brainiac. Using advanced weaponry and a special strain of Kryptonite harvested from the far reaches of outer space, Luthor specifically redesigns Brainiac to defeat the Man of Steel.

When LexCorp accidentally unleashes a murderous creature, Superman meets his greatest challenge as a champion. Based on the "The Death of Superman" storyline that appeared in DC Comics' publications in the 1990s.

Experiments in biological warfare have destroyed all but a few remnants of the human race. Alone in a lab, eight students work feverishly to create a vaccine before they are forced outside in search for food. It is then that the surviving scientists discover creatures mutated by the plague. Now they prepare to do battle against their worst fear: The Terror Within.

A group of mutant gators attack the cajun people. Pouring blue chemicals in a Louisiana swamp causes the alligator population to morph into monstrous creatures including a clan of cajuns living in the bayou.

A headstrong animal-rights activist group plans a raid on a bio-tech company to stop the cruelty. They discover the true nature of the experiments that are really taking place. As they break into a biotech lab only to have their idealism crushed by the terrifying things they find inside. But when a genetically mutated human with a taste for human flesh gets released, they all struggle to survive!

Happy couple Jason and Alexandra lose their sail yacht in a storm and are grateful to get picked up by Captain Jim Bigelow's commercial carrier. Suspicious about the ship's doctor and realizing the ship is improbably empty and the radio not broken as the crew claims, Jason starts snooping around. Bodies on meat-hooks, genetic experimentation and giant spiders are what he finds.

A mad scientist (Donald Pleasence) crosses plants with people, and the results wind up in a sideshow.

American astronaut Frank Douglas mysteriously disappears from his spacecraft as it parachutes to Earth. He is apparently replaced by or turned into a large, radioactive, humanoid monster. A team of scientists and military men attempt to capture the monster.

A cursed survivor of killings at the Amityville House brings evil to a small island where bizarre genetic experiments are carried out on humans and animals.

A biological experiment in Florida goes awry. The result: 8-foot long land crabs which roar loudly and kill everything in sight.

While searching for oil in the deadly swamplands of the Florida Everglades, members of a geological expedition meet an insane doctor who is working on an experiment to create a creature that is part man and part alligator.

Returning from the planet Venus, an errant NASA spacecraft crashes into the ocean, spilling its radioactive cargo. Enveloped by a radioactive mass, a rabid weasel is transformed into a gigantic killer mutant. Prowling the countryside, the huge weasel kills and devours victims. The creature is captured by a disturbed scientist who plans to use its regenerative blood to amass an army of similar monsters, enabling him to conquer the Earth.

The U.S. Navy's special group "Blue Water" builds a half-shark, half-octopus for combat. But the sharktopus escapes and terrorizes the beaches of Puerto Vallarta.

Mutant radioactive bugs attack VJs, Carmen Electra and an island full of MTV contest winners in this tongue-in-cheek tribute to B-movies, monster flicks and even MTV. MTV Original Movies presents Monster Island, a flick with old school effects mixed with hot new celebrities. There’s action, romance and big bugs--now is that something you really want to miss?

Professor "Johnny Longbow" Salina, a man who really knows his stews, introduces Paul Carlson to the practical-joking Kathy Nolan. Paul and Kathy seem to hit it off rather well but, during a meteor storm, a meteorite fragment strikes Paul, burying itself deep in his skull, which has the unpleasant side-effect of causing Paul to mutate into a giant reptilian monster at night and go on murderous rampages. It turns out that this sort of thing has happened before, when Professor Salina rediscovers ancient Native American paintings detailing a similar event many centuries ago. Kathy, however, still loves Paul, and tries to save him.

When military experiments go haywire and trigger an atomic bomb, the consequences are of epic proportions. A monster arrives in the midst of the nuclear fallout, and Japan's defenses are helpless against it. Mankind's only savior is an irradiated water goblin from Japanese folklore called the "Death Kappa." The two rival monsters must go head-to-head in the ultimate battle between good and evil!