Science Fiction Generators Guide

Generators for spaceships and aliens, star-systems and planets, plots and tech. For your game in the future or a galaxy far, far away...

Gen Guides by Genre - Science Fiction | Horror | Pirates and Seas | Dark Fantasy | Dungeons

Sci-fi Roleplaying Games

Science fiction games range from old school of Traveller to the more recent Mothership RPG or an option in flexible systems such as Savage Worlds. Then there are quirky universes such as Warhammer 40K and science-fantasy such as Starfinder and Star Wars. If you're here you might like guides for Cyberpunk or Star Wars.

For many the magic of sci-fi is in the spaceships they fly and aliens they meet or fight. For others it is travelling among the stars and discovering strange planets.

Every rpg needs characters and the plots that entangle them

Lastly you may prefer pdfs, tools for specific RPGs or assorted bits and pieces

Space Characters

characters | spaceships | aliens | the stars | planets | plots | sci-fi pdfs | specific RPGs | bits and pieces

Cotterr-499: Exploration Robot. Cotterr-499 has a tracked chassis and a pair of heavy arms, and is equipped with various sensors and survey tools. It is programmed to be courteous and inquisitive.

...from Space NPC generator at Donjon.

Every game starts with characters, and a name can make or break a character. The Sci-Fi Character Name Generator from Sci-Fi Ideas is a place to start.

Many sci-fi characters are in need of a gadget to use or a weapon to wield.

Gadget Namer at 7th Sanctum

Spaceships

characters | spaceships | aliens | the stars | planets | plots | sci-fi pdfs | specific RPGs | bits and pieces

Name: UFS Summertime. Type: Mid-sized dreadnought. Weapons: kiloproton canons, Defence: V2 Photon anti-attack fighters. Condition: Leaking plasma gas from a damaged hull section

...from Starship Generator at SciFiIdeas.com.

Spaceships will be used for transport, space battles, daring escapes and to define some characters. Adding to the tool above you can get a general description or a little more depth.

The spaceship model creator can help visualize some spacecraft.

If bits fall off your ship then the Futuristic Spare Parts Generator might help you out.

Or spaceship becomes space dungeon with maps of a sci-fi ship, add space traps and use some creatures from the next section.

Spaceship Dungeon

Aliens and Space Monsters

characters | spaceships | aliens | the stars | planets | plots | sci-fi pdfs | specific RPGs | bits and pieces

You may want a basic alien description, something more detailed or lots of lots of alien ideas at once.

Then there is a broader lifeform generator

Flesh it out with a graphical model or some alternative alien names.

The Rand Roller alien

Stars and Systems

characters | spaceships | aliens | the stars | planets | plots | sci-fi pdfs | specific RPGs | bits and pieces

For a quick map here is a Sector Generator which also gives basics of worlds, npcs, corporations and more using a system from Stars Without Number.

You can use more generators to detail the stars or expand on a solar system

Crossing the galaxy you might need a sci-fi encounter or encounter a space phenomena. Maybe one of 75 sci-fi encounters or a Scifi Encounter Concept

Planets

characters | spaceships | aliens | the stars | planets | plots | sci-fi pdfs | specific RPGs | bits and pieces

Beyond Earth are many planets, and here you can map them out or describe them

Or you might want multiple planets.

Last is my favourite planet Generator with choices including Earth Like, Water World, Frozen Planet and No Atmosphere.

Water World

Stories and Plots

characters | spaceships | aliens | the stars | planets | plots | sci-fi pdfs | specific RPGs | bits and pieces

For plots and stories you can try sci-fi story ideas or a book and film title creator. But maybe you just need a Space Quest

PDFs of Random Tables

characters | spaceships | aliens | the stars | planets | plots | sci-fi pdfs | specific RPGs | bits and pieces

If you like to roll on random tables or use them for ideas then The Book of Random Tables: Science Fiction or The Sci-fi Bundle Collection. Ewen's Sci-Fi tables are d6 and also worth checking out.

Star Wars and Starfinder

characters | spaceships | aliens | the stars | planets | plots | sci-fi pdfs | specific RPGs | bits and pieces

Our generators so far have been system and setting neutral, but it's worth mentioning Starfinder Tools for all things Starfinder and the Star Wars Multigen Tool for many Star Wars ideas

Starfinder starship

Space Cities, 7th Sanctum Tech & Scifi Ideas

characters | spaceships | aliens | the stars | planets | plots | sci-fi pdfs | specific RPGs | bits and pieces

If you are visiting a space city you might want an alien restaurant menu or plans of a a city area map (sci-fi city option)

Seventh Sanctum has a number of tech generators ideal for ideas, including the robot maker, and med tool. Round that off with weird particles and arcane technomancy

Finally I've mentioned a couple of their generators already but SciFi ideas.com is full of more generators, inspiration and ideas for everything Science Fiction related...

Your Generator Recommendations

If you like the Generators Guide my Patreon has a monthly poll on what Guides to do next

I'll keep this guide updated so please suggest Science Fiction generators in the comments or on twitter to @DuncanThom

Do the same if you'd like to see generator guides for Star Wars, Star Trek, Starfinder, Traveller, Doctor Who, Warhammer 40K or another brand of sci-fi

Gen Guides by Genre - Science Fiction | Horror | Pirates and Seas | Dark Fantasy | Dungeons