2026 · ソースブック（プレイを拡張するルール／オプション）

Steampunk

A sourcebook for running steampunk adventures with the HARP rules, covering settings from historical nineteenth-century melodrama to retro-science-fiction exploration and alternate worlds of advanced steam technology. It introduces twelve professions, new backgrounds, skills, talents, and character forms such as clockwork automata, steam automata, and laboratory creations. Equipment and vehicles range from historical technology to marvellous steam inventions and electrical miracles, with optional mysticism, weird science, vehicles, and combat rules. Guidance for campaign creation and a selection of spirits, dinosaurs, Ice Age giants, and inhuman intelligences are also included.