A cross-media guide — picked by taste, not by who paid for placement.
What makes alien and first-contact stories so enduring is the mirror they hold up to humanity. Whether the encounter is terrifying, comic, or quietly transformative, the arrival of the unknown forces characters — and audiences — to reckon with who we are. The best of these stories resist easy answers: Alien makes contact a death sentence; Lilo & Stitch makes it a lifeline. Across film, TV, games and books the theme travels because the central question never gets old: what happens to us when we are no longer alone?
Film
Disclosure Day
A taut thriller that asks whether proof of alien life would liberate or terrify us.
Film
Project Hail Mary
A science teacher wakes alone in deep space, memory gone, tasked with solving a mystery threatening Earth.
Film
Avatar: Fire and Ash
Jake Sully's family faces a ruthless Na'vi tribe, the Ash People, in a new war for Pandora.
Film
Signal One
A computer scientist joins a billionaire's island facility to investigate extraterrestrial matter — chaos follows contact.
Film
Scary Movie 3
A news anchorwoman stumbles into stopping an alien invasion — played entirely for laughs.
Film
Predator
Elite commandos in a Central American jungle discover they are the prey of an extraterrestrial warrior.
Film
Alien
A commercial spaceship crew follows a distress signal to a planet hiding thousands of alien eggs.
Film
Lilo & Stitch
A lonely Hawaiian girl and a fugitive alien help each other mend what is broken.
Series
Rick and Morty
A genius drags his inherently timid grandson on chaotic, universe-spanning alien adventures.
Series
Smallville
A Krypton refugee grows into Earth's greatest hero across his turbulent teenage years.
Series
American Dad!
An eccentric CIA household gains an alien housemate, mining the culture clash for comedy.
Series
Stargate SG-1
A military team uses an ancient alien Stargate to explore — and defend — a galaxy of planets.
Series
INVINCIBLE
A teenager's father is the world's most powerful superhero — and now Mark is developing powers too.
Series
Doctor Who
A 900-year-old alien Time Lord travels the universe, saving planets — more of a hobby, really.
Series
The X-Files
Two FBI agents chase paranormal cases: one believes in aliens, the other is a determined skeptic.
Series
Star Trek: The Next Generation
Captain Picard and the Enterprise crew explore new worlds, making alien contact the heart of every voyage.
Game
Mass Effect 3
The trilogy's finale: an action RPG where your choices determine how every species survives an extinction threat.
Game
Halo: Combat Evolved
Master Chief fights for humanity against the Covenant, an alien alliance wiping out colony after colony.
Game
Evolve
Hunters and hunted swap roles as alien monsters evolve in real time during the chase.
Game
Aliens: Colonial Marines
Colonial Marines return to fight the Alien franchise's iconic extraterrestrial in a story-driven shooter.
Game
Teenage Mutant Ninja Turtles II: The Arcade Game
Four ninja turtles fight their way through Shredder and his goons in classic side-scrolling arcade action.
Game
Aliens Versus Predator 2
Play as Alien, Predator, or Marine on LV1201, where three species battle for survival.
Game
Mortal Kombat XL
The XL edition adds a playable Alien fighter to Mortal Kombat X's roster alongside Leatherface and Triborg.
Game
Defense Grid
Place towers strategically to stop waves of alien enemies from stealing your power cores.
Alien (1979) is the definitive frightening encounter; Lilo & Stitch is the warm counterpoint. Between them they show the full emotional range the genre can reach.
Mass Effect 3 is the final chapter of a trilogy where your choices shape how every species survives — no other game on this list puts the weight of alien diplomacy so squarely on the player.
Stargate SG-1 is one of the longest-running sci-fi series built entirely around the first-contact premise — a military team using an ancient alien device to explore and defend a whole galaxy of planets.