Diaspora vs Fate Core
Compare Diaspora and Fate Core side by side. See differences in complexity, dice, genre, and more.
| Diaspora | Fate Core | |
|---|---|---|
| Genre | Sci-Fi | Universal |
| Tags | Worldbuilding, Collaborative, Tactical, Simulation, Toolkit, Sandbox, Tag-Based | Narrative, Fiction-First, Character-Driven, Collaborative, Tag-Based, Toolkit, Worldbuilding, Rules-Light, Social Combat, Strong GM Support |
| 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. | Roll four Fate dice and add a skill rating to compare with the opposition. Spend Fate points to invoke a relevant aspect for +2 or a reroll. Accept an aspect-based complication to gain a Fate point. |
| Dice | 4dF (Fudge dice) | 4dF |
| Complexity | Medium | Low |
| Availability | Paid | Free core rules |
| Runnability | 4 of 5 book tools | 5 of 5 book tools |
| License | OGL v1.0a | CC BY 3.0 (SRD) |
| Third-Party Publishing | Not yet researched | Commercial publishing allowed — Open license |
| Summary only, not legal advice. Check current terms before publishing. | ||
| Publisher | VSCA Publishing | Evil Hat Productions |
| Year | 2010 | 2013 |
| Languages | English | English, French, German, Spanish, Portuguese, Italian |
| 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. | Groups who want to build their own setting and follow capable heroes through personal complications and dramatic conflicts. |
| 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. | Compels turn character weaknesses into story complications that earn Fate points. Creating advantages gives allies free aspect invocations to combine for decisive actions. Conceding a conflict preserves some control over defeat and earns Fate points for later scenes. |
| 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. | Aspect use depends on agreement about which fictional details apply. Full character and setting creation can take an entire session. Magic and other extras require group decisions about permissions and costs. |