Aurora vs Gamma World
Compare Aurora and Gamma World side by side. See differences in complexity, dice, genre, and more.
| Aurora | Gamma World | |
|---|---|---|
| Genre | Sci-Fi | Post-Apocalyptic, Sci-Fi |
| Tags | Crunchy, Combat-Heavy, Skill-Based, Mission-Based, Base-Building, Deadly, Random Character Creation, Superpowers | Superpowers, Random Character Creation, Classless, Gonzo, Comedy, Tactical, Grid-Based, Combat-Heavy, Beginner-Friendly, Deadly |
| Core Mechanic | Roll d100 equal to or under skill value for a standard success. Degrees of success scale with the margin: standard (full value), difficult (half value), very difficult (quarter value), legendary (01 only). Misfortune triggers on rolls of 96+ (99+ for skilled characters). Combat uses initiative based on Dexterity, with major actions, minor actions, and reactions (number limited by Dexterity / 30). Defenders choose to dodge, parry, counterattack, or maneuver as reactions. Superpowers cost energy points and risk destabilizing the dimension when used in front of witnesses. | Roll a d20 and add a modifier, then compare the total to a target number or one of four defenses: Armor Class, Fortitude, Reflex, or Will. Two randomly rolled character origins combine to set starting ability scores, skills, and powers instead of a chosen race and class. Alpha Mutation and Omega Tech cards drawn from a shared deck grant each character's most powerful and unpredictable abilities for the session. |
| Dice | d100 | d20 |
| Complexity | High | Medium |
| Availability | Free quickstart | Paid |
| Runnability | 3 of 5 book tools | 5 of 5 book tools |
| License | All Rights Reserved | Proprietary |
| Third-Party Publishing | Not yet researched | Not yet researched |
| Publisher | GrubyBang | Wizards of the Coast |
| Year | 2024 | 2010 |
| Languages | English | English |
| Best For | Groups who want a crunchy BRP-based sci-fi game where superpowered agents travel to other dimensions on tactical missions, build up a shared base between operations, and face detailed combat with location-based wounds. | Groups who want a silly, fast-paced pickup game with randomly generated mutant heroes rather than a long-term character build. |
| Highlights | Dimension-hopping premise supports any genre or historical period within a single campaign. 16 superpowers with leveled upgrades and a risk-reward discretion system. Base-building expands Facility 13 with modules like the Isomer Forge (iconic weapons) and Nanite Workshop. 120+ weapons spanning primitive, modern, and futuristic eras. Detailed wound tables by body location and weapon type. | Alpha Mutation and Omega Tech cards replace a fixed power list, so a character's abilities shift unpredictably as cards are drawn, used, and discarded between encounters. Rolling two random character origins instead of choosing a race and class produces unplanned combinations that push players toward improvised character concepts. A hundred-item Ancient Junk table turns ordinary scavenging into a steady stream of small, flavorful rewards between the rarer Omega Tech finds. |
| Considerations | 11-step character creation process is detailed but lengthy. Translated from Polish: occasional language inconsistencies. No free rules or SRD available. | Character origins are rolled randomly from a fixed table, so a player who wants a specific concept must ask the Game Master for permission to choose origins instead. The starter box's 80 cards are the only power pool for groups without the two out-of-print expansion kits, capping how many distinct Alpha Mutations and Omega Tech items a table can draw. Running combat means tracking multiple readied and discarded card piles for each character in addition to the four defenses, conditions, and forced movement of the underlying 4th Edition engine. |