Top pick
Lancer
Best for tactical mech combat, deep builds, mission structure, and science-fiction campaigns where the fights are a major feature.
Best Science Fiction TTRPGs
Science-fiction TTRPGs cover survival horror, space opera, hard sci-fi, cyberpunk, exploration, military campaigns, and weird speculative premises. Start with Lancer, Mothership, Stars Without Number RPG, and Traveller as comparison points, then move down the list based on the kind of genre your group actually wants.
When comparing science fiction games, look at ship play, tech level, alien life, exploration, politics, danger, and whether the rules support the specific sci-fi mode your group wants. Those details matter more than the tag itself, because two games can share a category while asking completely different things from the GM and players.
Use the top picks as anchors rather than treating the page like a simple popularity ranking. The goal is to answer the practical table question: which game will produce the kind of first session, campaign rhythm, and player buy-in your group is likely to enjoy?
Sci-fi is not one genre at the table. Pick the procedures that match the campaign's main activity.
72 games All categories
Top picks
Best games in this category
Quick starting points if you want the clearest expressions of what Science Fiction games do well.
Top pick
Mothership
Best for blue-collar sci-fi horror where stress, survival, bad decisions, and industrial space danger drive play.
Top pick
Stars Without Number RPG
Best for sandbox sector play with strong GM tools, faction pressure, old-school procedures, and flexible science-fiction adventure.
Top pick
Traveller
Best first stop for classic open-ended science fiction: ships, trade, travel, patrons, strange worlds, and sandbox problem solving.
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How to choose the right Science Fiction TTRPG
The best science-fiction TTRPG for your table depends less on the genre label than on what the campaign should repeatedly ask players to do. A ship-crew sandbox, horror scenario, mech operation, cyberpunk job, and diplomatic space-opera campaign all need different procedures.
| If your table wants... | Start with | Why it fits | Go deeper |
|---|---|---|---|
| Ships, patrons, trade, travel, and open-ended sector play | Traveller | Jobs, routes, worlds, character history, and consequences create a durable crew-driven campaign. | Stars Without Number for stronger modern sandbox tools. |
| Blue-collar space horror and industrial danger | Mothership | Stress, panic, fragile characters, and hostile environments keep every job tense without heavy rules overhead. | Horror and Alien. |
| Sector sandboxes with factions and GM support | Stars Without Number | Its tools build systems, conflicts, missions, factions, and consequences around an old-school adventure chassis. | OSR. |
| Tactical mech missions with deep builds | Lancer | Narrative downtime and crunchy mech operations give tactical fights a clear place in the campaign loop. | Military. |
| Colorful d20 science-fantasy adventure | Starfinder | Classes, advancement, tactical encounters, aliens, starships, and magic-adjacent technology provide a familiar structure. | Space Opera. |
| Exploration, diplomacy, and a recognizable franchise | Star Trek Adventures | Crew roles, values, missions, and institutional responsibilities reinforce the tone of exploratory television science fiction. | Space Opera. |
| Street-level technology, corporations, and body modification | Cyberpunk Red | Money, power, surveillance, violence, and survival narrow science fiction to a corporate urban future. | Cyberpunk 2020 versus Cyberpunk Red. |
| A full science-fiction campaign without a GM | Ironsworn: Starforged | Oracles, sectors, expeditions, connections, and progress tracks sustain solo or co-op frontier play. | Solo Play. |
Choose the campaign loop first
If the campaign is about crews taking jobs, start with Traveller or Stars Without Number. If it is about fear and survival, start with Mothership or Alien. If it is about tactical missions, start with Lancer. If it is about political scale and operatic adventure, browse Space Opera. If it is about corporate streets and altered bodies, browse Cyberpunk.
Science fiction is broader than space opera
Space travel is only one lane. Cyberpunk, post-apocalyptic survival, weird science-fantasy, hard-science exploration, mech combat, time travel, and alien horror all belong here when technology or speculative change reshapes the decisions at the table.
Start here: Use the science-fiction TTRPG guide for a shorter editorial shortlist, then return to this page to browse the full catalog by campaign fit.
FAQ
Questions players ask
What is the best science-fiction TTRPG to start with?
Traveller is the best first stop for classic ship-and-sector play. Mothership is better for tense sci-fi horror, Stars Without Number is excellent for sandbox campaigns, Lancer is strongest for tactical mech combat, and Ironsworn: Starforged is built for solo or co-op play.
What is the difference between science fiction and space opera TTRPGs?
Science fiction is the broader category. Space opera focuses on starships, major factions, dramatic crews, empires, diplomacy, and galaxy-scale adventure. Cyberpunk, post-apocalyptic games, hard-science horror, time-travel games, and mech games can all be science fiction without being space opera.
Which science-fiction TTRPG is best for horror?
Mothership is the clearest pick for blue-collar sci-fi horror with stress, panic, and fragile characters. Alien is better when the group wants cinematic franchise play with familiar threats, survival pressure, and strong scenario structure.
Which science-fiction TTRPG is best for sandbox play?
Which science-fiction TTRPG can I play solo?
Ironsworn: Starforged is the strongest complete solo science-fiction campaign game in this category. Its oracles, sector generation, progress tracks, and connections also support co-op play. The Wretched is better for a focused solo survival-horror one-shot.
What should I avoid when choosing a science-fiction TTRPG?
Do not choose only by setting premise. Decide whether the table wants jobs, horror, tactical combat, exploration, faction politics, solo play, or franchise tone, then choose the game whose procedures reinforce that repeated activity.
More to compare
More Science Fiction TTRPGs to compare
Cyberpunk 2020
Cyberpunk 2020 is science fiction focused on near-future technology, cybernetics, networks, weapons, and urban systems rather than space opera. Its speculative tech changes bodies, labor, crime, and identity at the table.
Mothership
Use Mothership when your table wants science fiction play to shape real choices. It is most worth comparing for ship play, tech level, alien life, exploration, politics, danger, and whether the rules support the specific sci-fi mode your group wants. Step aboard the desolate, dark confines of space in Mothership, a sci-fi horror RPG where players navigate...
Traveller
Traveller is the classic open-ended science-fiction sandbox: lifepath crews, starships, trade, exploration, local politics, and practical risk across a large interstellar society.
BattleTech
Use Battletech when your table wants science fiction play to shape real choices. It is most worth comparing for ship play, tech level, alien life, exploration, politics, danger, and whether the rules support the specific sci-fi mode your group wants. BattleTech RPG (also known as MechWarrior: A Time of War) plunges players into the far-future universe of...
Alien
Use Alien when your table wants science fiction play to shape real choices. It is most worth comparing for ship play, tech level, alien life, exploration, politics, danger, and whether the rules support the specific sci-fi mode your group wants. Alien RPG is Free League’s cinematic sci-fi horror TTRPG, built for stress, panic, corporate betrayal,...
Scum and Villainy
Scum and Villainy is built for a crew taking risky jobs across a pressured sector. Choose it when ship identity, faction entanglements, flashbacks, stress, and fast space-opera complications matter more than technical simulation.
Star Trek Adventures
Star Trek Adventures is a strong science-fiction pick when your table wants diplomacy, problem-solving, and bridge-crew procedure to matter as much as firefights. It fits best for optimistic exploratory campaigns where strange phenomena, alien cultures, and institutional duty generate the weekly mission.
Coriolis
Use Coriolis when your table wants science fiction play to shape real choices. It is most worth comparing for ship play, tech level, alien life, exploration, politics, danger, and whether the rules support the specific sci-fi mode your group wants. Embark on a spacefaring adventure in Coriolis, a sci-fi tabletop RPG set in a universe of ancient mysteries...
Dune: Adventures in the Imperium
Dune belongs here because its science fiction is not just surface dressing over generic adventure. Spice economics, shield technology, mentats, Bene Gesserit influence, and the structure of the Imperium all change what problems matter and how characters pursue power.
Eclipse Phase
Eclipse Phase belongs in science fiction when your table wants that label to matter in play instead of only in browsing. Eclipse Phase is a transhuman science-fiction TTRPG of conspiracies, body-swapping, and existential horror, built for groups that want big ideas and sharp consequences instead of uncomplicated heroics.
Blue Planet: Recontact
Blue Planet: Recontact belongs in science fiction when your table wants that label to matter in play instead of only in browsing. Blue Planet: Recontact is an ecologically focused hard-science-fiction game about frontier survival, colonial pressure, and the dangerous beauty of Poseidon, a distant ocean world.
Cloudbreaker Alliance
Cloudbreaker Alliance fits Science Fiction through its fallen civilizations, cloudbound geography, expedition tech, research procedures, and science-fantasy approach to discovering how monsters and the world actually work.
Stars Without Number RPG
Use Stars Without Number RPG when your table wants science fiction play to shape real choices. It is most worth comparing for ship play, tech level, alien life, exploration, politics, danger, and whether the rules support the specific sci-fi mode your group wants. Stars Without Number is a sandbox science-fiction RPG built for sector exploration, faction...
Starfinder
Starfinder offers science-fantasy through classes, gear, tactical encounters, starships, planets, and faction play. It fits groups that want a familiar d20 campaign structure with a loud galaxy-spanning setting.
Degenesis: Rebirth
Degenesis: Rebirth belongs in science fiction when your table wants that label to shape actual play. Degenesis: Rebirth is a free-to-play post-apocalyptic “Primal Punk” game of brutal cultures, cult politics, and survival in a shattered future Europe and North Africa.
24XX
Use 24XX when your table wants science fiction play to shape real choices. It is most worth comparing for ship play, tech level, alien life, exploration, politics, danger, and whether the rules support the specific sci-fi mode your group wants. 24XX is a rules‑lite sci‑fi toolkit SRD: pick a die, roll high, keep play fast, and favor clear fictional...
Alone Among the Stars
Use Alone Among the Stars when your table wants science fiction play to shape real choices. It is most worth comparing for ship play, tech level, alien life, exploration, politics, danger, and whether the rules support the specific sci-fi mode your group wants. Alone Among the Stars is a rules‑lite solo journaling game about exploring strange worlds.
Ashen Stars
Use Ashen Stars when your table wants science fiction play to shape real choices. It is most worth comparing for ship play, tech level, alien life, exploration, politics, danger, and whether the rules support the specific sci-fi mode your group wants. Ashen Stars plunges players into a vibrant, galaxy-spanning universe as they assume the roles of elite...
Blade Runner
Use Blade Runner when your table wants science fiction play to shape real choices. It is most worth comparing for ship play, tech level, alien life, exploration, politics, danger, and whether the rules support the specific sci-fi mode your group wants. Blade Runner is a noir investigative RPG about identity, empathy, and moral pressure inside a...
Carbon 2185
Use Carbon 2185 when your table wants science fiction play to shape real choices. It is most worth comparing for ship play, tech level, alien life, exploration, politics, danger, and whether the rules support the specific sci-fi mode your group wants. Carbon 2185 is a cyberpunk RPG of augmentations, corporations, guns-for-hire jobs, and neon-drenched...
Cities Without Number
Cities Without Number fits science fiction through near-future tech, drones, cyberware, hacking, corporate power, and speculative urban systems, but its real value is showing how sci-fi procedures can drive an open campaign rather than a fixed mission path.
Cloud Empress
Cloud Empress belongs in science fiction through ecological speculation, post-war technology, strange relics, and Mothership-derived survival pressure, but it trades starship corridors for pastoral science fantasy and overland discovery.
Coyote & Crow
Use Coyote & Crow when your table wants science fiction to shape social assumptions, technology, and long-term campaign choices without defaulting to grim collapse or ship-combat routine. It is especially useful for groups comparing hopeful futures, culturally specific worldbuilding, and sci-fi games where community matters as much as danger.
Keep browsing
Related categories
Genre and setting
Space Opera
Use space opera when the table wants crews, starships, empires, diplomacy, and galaxy-scale adventure.
Genre and setting
Cyberpunk
Cyberpunk is the street-level, corporate, body-modified edge of science-fiction play.
Core play activity
Survival
Many sci-fi games make hostile environments, resource scarcity, wounds, stress, and escape the main pressure.
Genre and setting
Post-Apocalyptic
Post-apocalyptic games focus the future on collapse, rebuilding, ruins, scarcity, and life after the old world breaks.