This is meant to be a non-exhaustive list, in stream-of-consciousness alphabetical order.
Dedicated systems
- 2300 AD (now a setting for Traveller)
- 3:16: Carnage Amongst the Stars
- Apocalypse World
- BattleTech: A time of war
- Coyote & Crow
- Cyberpunk (2013, 2020, V3.0, Red)
- Eclipse Phase
- Lancer
- Paranoia
- Shadowrun
- SLA Industries
- Star Wars roleplaying (different games by different publishers: WEG d6, d20, FFG NDS)
- Traveller (in its many incarnations throughout the past nearly 50 years and derivatives such as Cepheus, Hostile, Kosmic)
- Warhammer 40K
FATE based systems
- Atomic Robo
- Bulldogs!
- Diaspora
- Mindjammer
- Nova Praxis
OSR/d20 based systems
- CY_BORG
- Mothership
- Starfinder
- Stars/Cities/Ashes Without Number
Year Zero
- Alien: The RPG
- Blade Runner: The RPG
- Coriolis – The Third Horizon
- Mutant: Year Zero
GURPS
A host of modules and supplements named after the subgenre, GURPS-style. GURPS Transhuman Space, Cyberpunk, etc.
Other systems
- BattleTech: Mechwarrior: Destiny (Cue)
- Black Star (d6)
- Dune: Adventures in the Imperium (Modiphius 2d20)
- Fading Suns (VPS)
- Neon City Overdrive (d6)
- Rifts (Palladium)
- Robotech (Palladium)
- Salvage Union (Quest RPG)
- Scum and Villainy (FitD/PbtA)
- Star Trek Adventures (Modiphius 2d20)
- The Expanse RPG (Modern AGE)
Solo friendly
- Hostile (Cepheus/Traveller)
- Ironsworn: Starforged (PbtA)
- Stoneburner
Out of print/No longer developed
- Albedo
- Battlestar Galactica RPG (Cortex Classic)
- Blue Planet
- CORPS
- Firefly RPG (Cortex Plus)
- Gamma World (D&D)
- HARP SF
- Heavy Gear
- High Colonies
- Jovian Chronicles
- Judge Dredd RPG
- Justifiers
- Living Steel
- Metamorphosis Alpha
- Mutant Chronicle
- Other Suns
- Ringworld
- Serenity RPG (Cortex Classic)
- Space Master
- Space Opera
- Star Frontiers
- Universe
Have a suggestion to improve this? Your favorite game missing? Leave a comment.
BattleTech! That’s the one. Didn’t know they made an RPG out of it.
Firefly is an out of print Cortex Plus game by Margaret Weis Productions. It’s in the list as well as Serenity (the Cortex Classic game by MWP, isn’t IP licensing fun?).