Diaspora vs Starfinder
Compare Diaspora and Starfinder side by side. See differences in complexity, dice, genre, cost, and more.
| Diaspora | Starfinder | |
|---|---|---|
| Genre | Scifi | Scifi |
| Play Style | Worldbuilding, Collaborative, Tactical, Realistic, Toolkit, Sandbox, Narrative, Fiction-First, Hackable, Tag-Based, Skill-Based, Classless | Tactical, Crunchy, Combat-Heavy, Character Building, Grid-Based, Heroic, Ascending AC, Space Opera, Ship-Based, Exploration |
| Core Mechanic | Roll 4dF (four Fudge dice, range -4 to +4) plus a Skill from the character's 15-skill pyramid, compared against a fixed difficulty or an opposed roll. Spend a fate point to invoke one of your Aspects for +2 or a reroll; the referee compels Aspects to push the story and pay fate points back. | d20 + modifier vs. DC. Three-action economy per turn. Four degrees of success. Cross-compatible with Pathfinder 2e. |
| Dice | 4dF (Fudge dice) | d20 |
| Complexity | Medium | High |
| Accessibility | Medium | Very High |
| Runnability | High | High |
| License | OGL v1.0a | ORC |
| Cost | $ | Free (ORC) |
| Publisher | VSCA Publishing | Paizo |
| Year | 2010 | 2024 |
| Best For | Groups who want to collaboratively build a six-to-ten-system star cluster at session zero, then play hard-SF interstellar campaigns where personal firefights, vector-based ship duels, social confrontations, and platoon-scale battles each run as their own dedicated mini-game. | Sci-fi fans who want Pathfinder 2e's tactical depth with plasma rifles and starships. Great for PF2e veterans looking for cross-compatible space adventure. |
| Highlights | Cluster generation rolls Technology, Environment, and Resources for each star system on a -4 to +4 scale, then the table maps slipstream links between systems before play — the setting is built collaboratively rather than handed to the players. Space combat collapses range and velocity onto a single -4 to +4 vector track, so a torpedo-heavy frigate trying to hold standoff range and a beam-armed cruiser trying to close create real positional tension without grids or hex maps. Personal, social, and platoon combat each run as separate mini-games sharing one fate-point economy, so debating a planetary council, leading marines into a city block, and a knife fight resolve in the same language while feeling mechanically distinct. | Free rules on Archives of Nethys, deep tactical combat, cross-compatible with PF2e, distinct class identity |
| Considerations | Built on the pre-Fate-Core 2009 version of the Fate engine — terminology, the aspect-invocation flow, and the older stunt design predate later refinements, so players coming from Fate Core or Fate Accelerated will need to relearn the conventions. Cluster creation, system linking, and the five-phase collaborative character generation are designed to fill a full first session before play begins, so the game does not support spontaneous one-shots or solo character prep. Vector-based space combat enforces momentum, fuel, and reaction-drive constraints, so ship scenes resolve as deliberate tactical exchanges rather than narrative-first cinematic dogfights. | Steep learning curve, fewer classes and options than PF2e (still growing), tactical starship combat rules deferred to a future supplement with current rules being narrative only |