2025 · ソースブック（プレイを拡張するルール／オプション）

13th Age Second Edition: Combined Heroes' Handbook, Gamemasters' Guide, and Game Master's Screen

A fantasy d20 roleplaying game that combines tactical combat with story-focused character and campaign rules. Each character has a One Unique Thing, backgrounds that shape skill checks, and connections to powerful icons such as the Archmage, Lich King, and Prince of Shadows. The second edition includes rules for character creation, nine distinct classes, kin, combat, talents, spells, treasure, and the Dragon Empire setting. The Gamemaster’s material provides campaign advice, battle-building tools, hundreds of monsters, monster-creation guidelines, and introductory adventures. A three-panel screen summarizes monster and battle design, combat conditions and actions, environmental threats, and treasure rewards.