Cortex Prime vs The Elf Game
Compare Cortex Prime and The Elf Game side by side. See differences in complexity, dice, genre, cost, and more.
| Cortex Prime | The Elf Game | |
|---|---|---|
| Genre | Universal | Universal |
| Play Style | Narrative, Modular, Collaborative, Toolkit, Roleplay-Heavy, Character-Driven, Tag-Based | Rules-Light, Beginner-Friendly, Hackable, Descending AC |
| Core Mechanic | Assemble a dice pool from trait sets (attributes, skills, relationships, etc.) rated d4–d12. Roll the pool, keep the two highest for your total vs. opposition, then choose an Effect Die from the remainder to determine magnitude. Plot Points let players add dice, activate abilities, or alter the narrative. Every mechanical element is a swappable mod. | Assign six ability scores rolled on 3d6, then resolve any uncertain action by rolling a D20 and subtracting your adjustments. A result at or under the relevant Ability Score succeeds, and a higher result fails. A natural 1 always succeeds and a natural 20 always fails. Attacks use the same roll-under method, subtracting a Melee or Ranged score and comparing the total to the target's Armor Class. |
| Dice | d4–d12 dice pool | d20 |
| Complexity | Medium | Very Low |
| Accessibility | High | Very High |
| Runnability | Very High | Medium |
| License | Cortex Creator License | Public Domain |
| Cost | $$ | Free |
| Publisher | Dire Wolf Digital | S&A Baudelaire |
| Year | 2020 | 2025 |
| Best For | GMs who want to build a custom system from modular parts: homebrew designers, genre-mixers, and groups tired of forcing their stories into a pre-built framework. | Groups who want a free, pick-up-and-play system for a first RPG or a one-shot, especially tables happy to supply their own spells or borrow rules from other old-school games. |
| Highlights | Highly modular: 18+ mods for core rules alone, clear writing with worked examples, Plot Point economy creates dynamic give-and-take, powered well-known licensed games (Marvel Heroic, Firefly, Leverage) | Ability tests and attacks both roll a D20 under a target number, so players learn a single resolution method and apply it to skills, combat, and saving throws alike. A character picks a class and a stance independently, so Fighter or Tradesman combined with Magical or Mundane yields several distinct builds from a tiny ruleset. Characters advance only from Level 0 to Level 3 by Referee fiat, so there is no experience economy to track. |
| Considerations | Not playable out of the box: requires significant GM assembly, steep learning curve to understand which mods fit your game, every roll involves choosing which dice to keep plus an Effect Die which slows resolution | Advancement caps at Level 3, so extended campaigns quickly run out of mechanical growth. Spells are named but never detailed on the rules sheet, so magical characters draw their actual spell effects from the Referee or compatible outside material. Every uncertain action is a single Ability Test with no fixed difficulty tiers, so how hard a task is depends on which ability the Referee calls for rather than a set target number. |