d20 System Games

d20 System games roll a twenty-sided die, add modifiers, and compare the total to a target number, a framework shared by Dungeons & Dragons and the many games derived from its rules.

16 systems in the catalog.

1. Dungeons & Dragons Heroic fantasy adventures of magic, monsters, and dungeon exploration Dice: d20 · Complexity: Medium · Cost: Free
2. Pathfinder A deeply tactical fantasy RPG with unmatched character building Dice: d20 · Complexity: High · Cost: Free
3. Starfinder Tactical sci-fi adventure blending magic and starships in a far-future galaxy Dice: d20 · Complexity: High · Cost: Free
4. 13th Age d20 fantasy combat meets narrative storytelling, powered by the escalation die Dice: d20 · Complexity: Medium · Cost: $$
5. Star Wars Saga Edition Play heroes across every era of Star Wars with talent trees and cinematic action Dice: d20 · Complexity: Medium · Cost: Unavailable
6. Castles & Crusades Rules-light d20 fantasy bridging old-school AD&D and modern play Dice: d20 · Complexity: Low · Cost: Free
7. Tales of the Valiant Kobold Press's independent take on 5th edition fantasy with new options and full backwards compatibility Dice: d20 · Complexity: Medium · Cost: Free
8. Level Up: Advanced 5th Edition D&D 5e rebuilt with deeper tactics, exploration, and social interaction Dice: d20 · Complexity: High · Cost: Free
9. Gamma World Mutant explorers scavenge a post-apocalyptic Earth patched together from collided alternate timelines Dice: d20 · Complexity: Medium · Cost: $
10. Adventures in Middle-earth Free Peoples of Wilderland resist the gathering Shadow in the years between The Hobbit and The Lord of the Rings Dice: d20 · Complexity: High · Cost: Unavailable
11. Mutants & Masterminds Costumed heroes battle supervillains, alien invaders, and cosmic threats in modern comic book adventures Dice: d20 · Complexity: High · Cost: Free
12. Blue Rose Romantic fantasy envoys defend an egalitarian kingdom from corruption and Shadow Dice: d20 · Complexity: High · Cost: $
13. Five Torches Deep 5e skeleton, OSR soul: streamlined dungeon crawling with real resource tension Dice: d20 · Complexity: Low · Cost: Free
14. Those Who Wander Heroic fantasy where characters mix any two parentages and walk a 20-step path shaped by an awakening heirloom Dice: d20 · Complexity: Medium · Cost: $$
15. WARDEN A genre-agnostic cinematic d20 RPG for tactical campaigns in any setting Dice: d20 · Complexity: Medium · Cost: $
16. Pathwarden Classless fantasy heroes combine tactical battles with exploration, projects, and story threads Dice: d20 · Complexity: High · Cost: $