2400
Lo-fi sci-fi micro RPG collection
T-DEF
A GMless mini-zine game where you pit your troopers against alien invaders!
XENOARCHEOLOGY
A solo excavation log ttrpg
What We Give To Alien Gods
An adventure module that explores thought, existence, and alien gods for the Mothership Sci-Fi Horror RPG.
It's In the Vents! Alien-inspired Solo Survival Game
A quick arcade-style spaceship survival game inspired by the ultimate alien thriller
When in Rome
Alien: Romulus inspired one-shot adventure for Mothership RPG
Caligaes' XENO
DESTROY. CONQUER. CONSUME. - YOU ARE THE ALIEN.
The Breach
Science Fiction Roleplaying Game
Primeval
An adventure module for the Mothership sci-fi horror RPG.
Derelict Delvers
A dungeon crawler in space, with a twist. What if Star Trek went terribly wrong?
Year of the Rat: A Mothership RPG Adventure
hit the jackpot, or die trying
CONTACT
we are not alone
24XX: BREACH
TTRPG about hunting demons in space derelicts
DISASTER/WING - Space Mecha Forged in the Dark
The game of teen disaster mecha pilots in space.
Alien Dark
These rules provide a way to explore the Alien Universe with lite rules inspired by Cthulhu Dark.
Man is the Warmest Place to Hide
a micro-larp based on john carpenter's the thing.
Mothership Character Keeper
An index card-sized Character Keeper for the Mothership Sci-Fi Horror Roleplaying Game.
The Last Caravan: A Cars and Aliens RPG (Digital)
Family roadtripping after an alien invasion
Caligaes' XENO Invasion: Quickstart
Become the alien. Destroy the humans. ESP/ENG
Spooky Action at a Distance
A single player RPG about first contact
Pale Dot
A game about non-human cosmonauts embarking on a whimsical, surreal, and existential journey through their solar system.
Kaichū-Shi
Play as frontier physicians, exploring dark forests and healing the mysterious ailments caused by alien organisms.
Space Legs v0.9
Space Legs is a Powered by the Apocalypse game about being the first humans in space
The Stone-Flesh Gift
A living ship module for Mothership 1e