2018 · コアルール（プレイに必要な最小限）

Ктулху

A tabletop roleplaying game of investigating occult mysteries in the nightmare-filled world of H.P. Lovecraft. Players create investigators, choose their occupations and motives, gather clues, and uncover secrets while confronting monsters, forbidden spells, and the threat of cosmic horror. The rules support detective-focused adventures in either an intellectual horror or pulp adventure style. They include skills, equipment, detailed rules for sanity and self-control, guidance for the game moderator, information about the 1930s, an introductory scenario, and optional combat rules.