Best movies like The Alien Factor

Marines on a deserted island are ordered to defuse bombs, but then an alien creature terrorizes them.

On March 13th, 1997 one of the largest UFO sightings ever recorded took place across the southwestern United States...

A creature from outer space, nightbeast, crash lands in Baltimore and starts a killing spree that quickly escelates.

An alien arrives on Earth looking to take human blood in an attempt to preserve his dying planet.

An anemic alien comes to Earth from a dying planet, in the remake of the Corman 50s classic.

A spaceship is sent to Mars after a alien distress signal is picked up. They find one survivor, but when a crew member is found drained of blood it's evident they have rescued a bloodsucking monster.

Aliens disguised as clowns crash land on Earth in a rural town to capture unsuspecting victims in cotton candy cocoons for later consumption.

After escaping with Newt and Hicks from the alien planet, Ripley crash lands on Fiorina 161, a prison planet and host to a correctional facility. Unfortunately, although Newt and Hicks do not survive the crash, a more unwelcome visitor does. The prison does not allow weapons of any kind, and with aid being a long time away, the prisoners must simply survive in any way they can.

Officially, Apollo 17 was the last manned mission to the moon. But a year later in 1973, three American astronauts were sent on a secret mission to the moon funded by the US Department of Defense. What you are about to see is the actual footage which the astronauts captured on that mission. While NASA denies its authenticity, others say it's the real reason we've never gone back to the moon.

Aliens punish one of their own by sending him to earth. The alien is very violent, and when the body he occupies is damaged, he is forced to find another.

In what appears to be a cross between Critters and The Towering Inferno, the residents of a shoddy L.A. apartment block are chased up to the roof by hoards of the eponymous hairy horrors.

A soldier from Earth crashlands on an alien world after sustaining battle damage. Eventually he encounters another survivor, but from the enemy species he was fighting; they band together to survive on this hostile world. In the end the human finds himself caring for his enemy in a completely unexpected way.

Detective Mark Corley storms his way onto an alien spaceship to rescue his estranged son. When the ship crashes in Southeast Asia, he forges an alliance with a band of survivors to take back the planet once and for all.

A massive ball of furry creatures from another world eat their way through a small mid-western town followed by intergalactic bounty hunters opposed only by militant townspeople.

In 1959, an alien experiment crashes to earth and infects a fraternity member. They freeze the body, but in the modern day, two geeks pledging a fraternity accidentally thaw the corpse, which proceeds to infect the campus with parasites that transform their hosts into killer zombies.

When a meteorite touches down in the New Jersey woods carrying a monstrous alien slug, it’s up to four teens to stop it before it’s terrifying brood consumes all life on Earth!

Just before bounty hunter Charile triggers his gun to destroy the last two Critter-eggs, he gets a message that it would be illegal to extinguish the race from the galaxy. He's sent a transporter where he puts the eggs - unfortunately the transporter takes him with it and then gets lost in space.

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.

Crew members aboard a space ship encounter an alien life form intent on killing them.

A crew of scientists arrives on a far, cold planet to examine archaic artifacts of unknown origin. They discover that their German enemies already have a ship there. When they seek their help after a failed landing, they only find the Germans’ bodies, obviously slaughtered by one of the archaic creatures, awoken to new life. Now the alien is after them.

A newlywed sheriff tries to stop a shambling monster that has emerged from a spaceship to eat people.

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.

An evil brain from outer space unleashes monsters with deadly diseases on Earth with trying to conquer the universe. Superhero Starman must battle them all to save his planet.

An alien is hunted by a gang of drunken hillbillies who saw him crash-land his spaceship.

As a lone spaceship proceeds on its long voyage across space, the crew are surprised to encounter a strange pyramid form. Surprise turns to horror as one by one, they discover that their darkest nightmares are all starting to become real. The pyramid has to be behind it all somehow, but how can they save themselves from its influence?

A small town is sealed in a electric forcefield by a blood thirsty rampaging killer cyborg alien and it's up to some towns folk and the sheriff's dept to stop it!

During its return to the earth, commercial spaceship Nostromo intercepts a distress signal from a distant planet. When a three-member team of the crew discovers a chamber containing thousands of eggs on the planet, a creature inside one of the eggs attacks an explorer. The entire crew is unaware of the impending nightmare set to descend upon them when the alien parasite planted inside its unfortunate host is birthed.

A psychic father and daughter band together with an "angel" in an attempt to save Earth from an extraterrestrial Armageddon. This suspenseful thriller ties together strange occurrences from 1965 in the Bermuda Triangle (where an American fighter pilot supposedly encountered a spaceship) and government hush-up conspiracies.

A good alien from a dying race must impregnate an Earth woman to avoid extinction of his race. A bad alien whose race helped wipe out good alien's race doesn't want to see this happen.

Charlie's ex-wife disappears, and he goes to where she grew up--a rural town in the midwest--to look for her. But, surprisingly, nobody knows about her or any of her many relatives, the Newmans. He meets aliens; but when he contacts the FBI, they don't believe him. He tells his story to a tabloid; and suddenly, he is chased by the aliens.

An astronaut exposed to cosmic rays outside of Saturn's rings returns to Earth and begins to melt away. Escaping from the hospital, he wanders around the backwoods looking for human flesh to eat.

In this remake of the classic 50s SF tale, a boy tries to stop an invasion of his town by aliens who take over the the minds of his parents, his least-liked schoolteacher and other townspeople. With the aid of the school nurse the boy enlists the aid of the U.S. Marines.

Loner teenager Billy Duncan stumbles across a lost alien ray gun while wandering the desert one day. Billy uses the destructive weapon to get revenge on his enemies, but quickly finds himself beginning to turn into a violent, alien creature who destroys anyone who offends him.

On a hot summer afternoon in the sleepy town of Blackwater Louisiana, a meteor streaks across the sky and crashes through the roof of the local Natural History Museum. The meteor is actually a spaceship containing an alien life form which animates the museum's partially frozen Woolly Mammoth and begins a rampage. Local authorities and Government Investigators join forces with Frank Abernathy, the Museum Curator, and his father Simon, a B-Movie enthusiast, to bring down the giant mammoth in this alien-invasion flick!

When strange lights descend on the city of Los Angeles, people are drawn outside like moths to a flame where an extraterrestrial force threatens to swallow the entire human population off the face of the Earth. Now the band of survivors must fight for their lives as the world unravels around them.

Dr. Blake runs a TV show called "Independent Thinkers", which is sort of a Scientology-like self-help/religion program. But he's not making his audience think any more independently - with the help of an alien organism he calls The Brain, he's using brainwashing and mind control. The only thing that stands between them and world domination is a brilliant but troubled high school student with a penchant for pranks...

In this loose remake of "Forbidden World" (1982), Commander Krieger and his robot companion Tinpan are summoned by a distress call to a research facility on the planet Phaebon, and soon find themselves battling a bizarre virus and a monstrous creature inadvertently created by the scientists there.

An alien starship crashes in a swamp in a U.S. National Park. Some mosquitos begin to feed from the alien's corpses, causing them to grow to the size of a vulture. These mutant insects became very agressive, killing every human being they find. Will the few survivors fight successfully against this nightmare...?

Two friends on a road trip pass through a town where aliens are landing and feeding upon the some of the civilians.

After someone is killed in the subterranean project called "Shadowzone," a NASA captain is called in to investigate. In the project, sleeping subjects are induced into a deep EDS state whereby they become portals to a parallel universe. Unfortunately this causes adverse reactions in the subject, and something gets through the portal, the consequence of which is an attrition problem.

Group of heroin smugglers finds shelter on abandoned oil rig after their ship had exploded. Soon they find that the oil rig was just cover for biological experiment. One of the results is Charlie - shape-shifting monster with ability to absorb the memory of its victims. However, even such creatures have their own bad habits.

A team of scientists go to a nuclear mining facility to investigate a possible meltdown and instead find a large amount of cloned dinosaurs.

Beautiful alien Amazonian women plan to conquer the world using an army of vegetable monsters. Dim-witted privates Philbrick and Penn bumble into a cave in search of atomic activity but collide instead with fierce carrot-topped tree mutants and their leaders, the 7-foot space sirens Prof. Tanga and Dr. Puna. This lavishly low-budget sci-fi romp has the bodacious aliens planning to overrun Earth with their vege-men army, but first they want the G.I.s to explain the meaning of love.

Space miners sent to stop a moon's collision course with the earth discover a hibernating creature that soon revives and starts slaughtering the mining crew.

In 1957 a fiery object crashes into a mountaintop in the California desert, bringing the threat of disaster to Earth. Out of the flying saucer escapes a murderous creature, the Ghota, bent on destroying all life forms on the planet. A benevolent alien from the spaceship, Urp, inhabits the body of Ted Lewis, an astronomer and with the help of Tammy, a diner waitress, sets out to save mankind.

Tyler and his brother find an alien ship which makes Tyler appear older and gives him other abilities. This turns his high school life upside down, and may enable him to help his older brother's love life. After he is abducted by beings who intend to takeover Earth, he must depend on his inept and lovelorn brother to rescue him.

250 million years ago, a carnivorous species 'planted' a crop of humans on an uninhabited planet known as Earth. Now, the alien life form has returned to harvest its yield. With total destruction looming just moments away, a futuristic warrior and a prophetic mental patient join forces against the creatures, but with mortal weapons no match for the superior alien technology, the duo's only hope for victory lies in finding a 250 million year-old spaceship known as Laserhawk. The future of the world depends on it.

Astronauts land on a planet with prehistoric creatures and a war between a human-like tribe and a race of vampires.

A spaceship gets lost and is forced to make an emergency landing on an unknown planet. The planet looks much like Earth, only with no trace of civilization. Soon the crew discovers that there are bloodthirsty dinosaurs on the planet. The crew hopes to be found and rescued, but until then, they must fight to survive.

The Lunar Base Ark explores ore and unexpectedly is hit by a meteor shower and has severe damages. Colonel Gerard Brauchman sends the crewwoman Ava Cameron to repair a wing that is full of CO2. Dr. Lance Krauss warns that the gas may cause paranoia and hallucinations. Ava brings a sample of the meteor for analysis and Dr. Krauss finds that there are spores attached to the meteor. Ava accidentally cuts her finger in a sample but she hides the cut from the doctor. Soon Ava gets pregnant and delivers an alien offspring. However, neither Col. Brauchman nor Dr. Kraus believes in her words and they believe that Ava is delusional. He offspring bites the crewman Bruce Johns and the crew discovers that Bruce has been cloned by the alien. Soon they find how dangerous the clone is.