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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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Sci-fi

Science-fiction. Commonly including things like aliens, advanced technology, and settings of outer space or distant planets. 

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Aliases...

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

sci-fi

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New & popular free
tagged Aliens and Sci-fi (71 results)

71 results

Explore physical games tagged Aliens and Sci-fi on itch.io · Upload your physical games to itch.io to have them show up here.

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Zenith-47
A system agnostic sci-fi horror TTRPG adventure set on a space station.
Sam Bell
Spirit Chips PWYW/Free Version
Fight an alien invasion in a solarpunk future with the help of your personal AI spirit.
Colt Hack
Assimilate/Exterminate
Be the mastermind of a alien species and conquer the universe
Hebi Weiss
Aliens vs Predator vs Colonial Marines
Interstellar warfare between the three most lethal species
STS_Gamer
Alien Dark
These rules provide a way to explore the Alien Universe with lite rules inspired by Cthulhu Dark.
Gallus Games - Alun R
Tem Alguma Coisa na Nave Conosco!
Jogo de panfleto onde algo está fazendo a tripulação diminuir a cada ciclo.
Naiá Jogos
Spacers in a Broken Galaxy
Gritty MICRO Sci-fi RPG
g0ri
XENO
Un juego de rol donde eres un ALIEN.
Caligaes
They swim among us
RPGuPolaka
Nebula
A space opera backpocket from Hill Giant.
hillgiant
BREATHLESS: ALIEN INVASION
Una invasión alienígena amenaza con acabar con la humanidad.
dsierra
HYPER DRIVE NITRO v0.99 (Early Access)
A fast-paced sci-fi racing RPG!
Iron Cutler
Metric Tons of Posthumans
One Page RPG of Science Fiction Posthuman and Transhuman Adventure with a Credit Resolution System
Golem
Black Smoke, Red Weed
Escape the Martian advance when every mistake could be your last!
Annie Lovell
To the Last!
Sacrifice everything in a doomed battle to fight off the Martians.
Annie Lovell
Majestic Mission - A FIST Mission
Aid MAJESTIC in recovering a lost nuclear warhead from an alien ship.
Sleepy Sasquatch Games
XENO - English Version
The TTRPG where you play as a horror movie alien.
Caligaes
Escape From Cellblock A
ElfieJenkins
Archangels: Defenders of Terra
Join the Archangels and protect Terra from the unending tides.
Purple Robed Wizard
Moon's Haunted
Solo tabletop FPS on the Moon
Trollish Delver Games
MVR001 ☉ Grim Harvest
A Stillfleet mini-venture, in which the voidminers try to stop their planet from being devoured…
stillfleet
Science-proof
Convince the aliens that you are worthy of more science
Aidan Bowes
Eltanin Gamma Draconis
Cypher System - Activate the Void Engine before the sentinels raze the planetoid!
Heart of Arcana
Martians in the Garden
Push your luck as aliens creep ever closer to your hiding spot.
Annie Lovell
The Great Crossing Heresies
Stranded at Marcion's Abbey during a Storm, discover the monk's heresies. A 4-fold pamphlet adventure for Mothership RPG
ChrisAir
Please Act Like Human
A game about an alien blending in with the local life forms
Eden Reese Potts
A Labyrinth of Stars
A game about your lonely adventure across the galaxy!
wander_brain
On The Shores Of Humanity
ENG | RUS. A sci-fi horror system-independent module. Mothership, Death in Space module.
blukavy | блукáвы
Ironsworn: Starforged - Time Traveler
Tools and guidelines for traveling to and interacting with the era of the precursors
Lemunde
Burn the Vermin on TAMA-81
Xeno Vermin threaten to infest TAMA-81 all over again. Locate. Isolate. GAMMA BURN. A Mothership RPG pamphlet adventure.
ChrisAir
Anthropology 101: The TTRPG
An alien anthropologist studies humans for their thesis, and the humans (un)intentionally mess it up
ctathkren
Mothership Character Keeper
An index card-sized Character Keeper for the Mothership Sci-Fi Horror Roleplaying Game.
Lone Archivist
Obsidian Republic
Science Fiction RPG Core Rulebook
diVISION+
Errata 2.1: Random Hunting Encounter Table for In the Light of a Ghost Star
Alec D. Beck Archive
Gigantic MEMORY HARVESTING Alien God
The Memory Collecting Alien Giant Assimilates you as New Beings into Their Brain Dimension. 8.5" x 14"
Azathoth [Nell Tull]
Errata 2: Variant Travel Rules for In the Light of a Ghost Star.
Alec D. Beck Archive
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