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Aliens

Featuring extraterrestrial beings, these games often explore themes of space travel, alien invasions, or interstellar diplomacy. Encounter mysterious life forms, defend against alien threats, or uncover the secrets of the cosmos in these otherworldly adventures.

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Side Scroller

Featuring gameplay that moves horizontally across a scrolling background, with characters typically walking, running, or jumping from left to right. Often includes platforming elements and side-view perspectives.

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Projects tagged with the following aliases will automatically show up on this page:

sidescroller

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Top rated free
tagged Aliens and Side Scroller (40 results)

40 results

Explore games tagged Aliens and Side Scroller on itch.io · Upload your games to itch.io to have them show up here.

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GIF
Vital Signs
A survival horror adventure game set in zero gravity
Jem Smith
Rated 4.6 out of 5 stars
(17 total ratings)
Adventure
Predator / 20 Second Game Jam 2022
Predator but in only 20 seconds
drgd_retro
Rated 4.7 out of 5 stars
(15 total ratings)
Platformer
Play in browser
GIF
Space Major Miner
Mine asteroids, upgrade your equipment and blast cosmic aliens!
Ardiam Games
Rated 4.5 out of 5 stars
(10 total ratings)
Platformer
Play in browser
Abduct And Destroy!
A procedurally generated twin stick shooter, where the main mechanic is based around abducting enemies.
OcO
Rated 4.2 out of 5 stars
(12 total ratings)
Shooter
Play in browser
Dark Space
Retro side-scrolling shooter
Taska
Rated 4.5 out of 5 stars
(6 total ratings)
Shooter
Moon Survival
Pixeles Muertos
Rated 4.8 out of 5 stars
(4 total ratings)
Platformer
Play in browser
Slice Back
Alien sushi? Yeah, there's live out there... and it's yummy!
Atomic Kraken
Rated 5.0 out of 5 stars
(3 total ratings)
Action
Scratchpaper
Throw me away, I dare you
Jeff Bishop
Rated 5.0 out of 5 stars
(2 total ratings)
Platformer
Play in browser
Blackstar
Blackstar is a small and simple metroidvania.
Nueve
Rated 5.0 out of 5 stars
(2 total ratings)
Platformer
Drop Zone Galaxy
Drop humans from your UFO in this physics based arcade game
RabbleGamesStudio
Rated 5.0 out of 5 stars
(2 total ratings)
Electro Pulse
Chipter Company
Rated 5.0 out of 5 stars
(2 total ratings)
Platformer
Play in browser
Cowboys vs Aliens
Shoot'em up built for the Ludum Dare #41
nidup
Rated 5.0 out of 5 stars
(2 total ratings)
Shooter
Play in browser
Astrophobia
Your ship, the Solar System Cargo Shipper (SSCS) has been invaded by an infection.
Vivian The Panda
Rated 5.0 out of 5 stars
(2 total ratings)
Survival
Invader TD
A tower defense game
Creativer Games Studio
Rated 5.0 out of 5 stars
(2 total ratings)
Strategy
Play in browser
Take Off & Out
echolily
Rated 4.5 out of 5 stars
(2 total ratings)
Adventure
Kanopa
A 2D arcade shooter. Your escape pod just landed on an hostile planet. You must try to survive as long as possible!
aerilon
Rated 4.5 out of 5 stars
(2 total ratings)
Shooter
Mogee
The world is collapsing so you'd better run fast
unsoundscapes
Rated 4.5 out of 5 stars
(2 total ratings)
Platformer
Play in browser
Star Troll
Action packed alien devastation in a fast paced space shmup!
Troll Inc
Rated 4.5 out of 5 stars
(2 total ratings)
Shooter
Humanoids
A plaformer run'n gun for Godot Community Game Jam Jan 2017
Phyrebot
Rated 3.5 out of 5 stars
(2 total ratings)
Shooter
Tea Tastes Better on the Moon
TTBOTM
friendlycosmonaut
Rated 5.0 out of 5 stars
(1 total ratings)
Platformer
Project Symbiote
A sidescroller about a human janitor and an alien parasite working together to break out of their high tech prison
NekoChan
Rated 5.0 out of 5 stars
(1 total ratings)
Platformer
Summit of the Stars: Altoph
A Retro SHMUP
Bincer Productions
Rated 5.0 out of 5 stars
(1 total ratings)
Shooter
Jack Hammer
Fight the onslaught of monsters and stop the invasion!
Alexiscool206
Rated 5.0 out of 5 stars
(1 total ratings)
Action
Collision
Repair your ship while it's being invaded by aliens and return to your trip!
Pockit
Rated 5.0 out of 5 stars
(1 total ratings)
Platformer
BAWOB - Beating Aliens With Oversized Balls
A game where you throw big balls at aliens
ProgramGamer
Rated 5.0 out of 5 stars
(1 total ratings)
Platformer
Cinder Block Chris and the Quest for the Office Printer
Play as Cinder Block Chris, an alien warrior/visitor who crash landed to Mexico.
Burger Guy Productions
Rated 5.0 out of 5 stars
(1 total ratings)
Action
Descent
Your descent into a cave inhabited by dark and twisted optic monsters seeking your destruction.
Billiams
Rated 5.0 out of 5 stars
(1 total ratings)
Shooter
Scavenger
One human, one droid and a Scavenger class space ship. Enter the Star Hulk Icarus on one last mission.
Clockwork Pixels
Rated 5.0 out of 5 stars
(1 total ratings)
Action
Project Chronos
It's ALL about time! Project Chronos is a 2.5D action-adventure platform game.
BladedGames
Rated 5.0 out of 5 stars
(1 total ratings)
Platformer
Grey Skies
simple, GBC-style side-scrolling brawler
Jesse Hamm
Rated 4.0 out of 5 stars
(1 total ratings)
Action
Martian Wave
MoonlitChameleon
Rated 4.0 out of 5 stars
(1 total ratings)
Platformer
Play in browser
Alien Go Boom
Save the Universe from the purple alien invasion!
BitWizurd
Rated 4.0 out of 5 stars
(1 total ratings)
Shooter
Play in browser
Xenolasso (jam submission)
Lasso alien critters for money and/or fun!
Daring Owl Studios
Rated 3.0 out of 5 stars
(1 total ratings)
Puzzle
Play in browser
Lost In Darkness
Uncover the secrets of an expedition gone wrong,
PatrickHalleby
Rated 3.0 out of 5 stars
(1 total ratings)
Adventure
Seed
CANCELLED
Spookto
Rated 2.0 out of 5 stars
(1 total ratings)
Platformer
STILLA ADVENTURE 2D
MUTANT PLANTS HAVE TAKEN OVER HUMANITY, ONLY YOU STAND BETWEEN HUMAN EXTINCTION AND SURVIVAL
J A Y - S T I L L A - I N C .
Rated 2.0 out of 5 stars
(1 total ratings)
Platformer
Play in browser
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