Gamma World vs Mothership
Compare Gamma World and Mothership side by side. See differences in complexity, dice, genre, cost, and more.
| Gamma World | Mothership | |
|---|---|---|
| Genre | Post-Apocalyptic, Scifi | Scifi, Horror |
| Tags | Superpowers, Random Character Creation, Classless, Gonzo, Comedy, Tactical, Grid-Based, Combat-Heavy, Beginner-Friendly, Deadly | Rules-Light, Deadly, One-Shot Friendly, Survival, Atmospheric, Low-Prep, Cinematic, Fast-Paced |
| Core Mechanic | 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. | Roll d100 under stat/skill. Stress and panic mechanics escalate tension. |
| Dice | d20 | d100 |
| Complexity | Medium | Low |
| Accessibility | Medium | High |
| Runnability | Very High | Medium |
| License | Proprietary | 3rd Party License |
| Third-Party Publishing | Not yet researched | Not yet researched |
| Cost | $ | $ |
| Publisher | Wizards of the Coast | Tuesday Knight Games |
| Year | 2010 | 2022 |
| Best For | Groups who want a silly, fast-paced pickup game with randomly generated mutant heroes rather than a long-term character build. | Terrifying sci-fi horror one-shots and short campaigns. Panic table creates unforgettable moments. |
| Highlights | 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. | Rules-light, well-regarded module library, panic system creates mechanical tension |
| Considerations | 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. | Panic table can cascade and end sessions abruptly, limited long-campaign support in core rules, stress mechanics can feel repetitive over extended play |