2006 · 战役设定（游戏世界）
Ptolus: The Spire
This supplement details two dangerous fortresses in the shadow of the Spire: Goth Gulgamel, the stronghold of Ghul the Skull-King and Half-God, and Jabel Shammar, the fortress built by the Dread One at the Spire’s summit. It provides room-by-room descriptions, adventure material for high-level characters, and ideas for staging a campaign climax. Full-color maps of both fortresses are included. The material supports city-based fantasy d20 roleplaying campaigns and can be used independently or with the other releases in the series.
技能型（购买或获得技能）基于属性/数值（STR、CON、PER 等）等级制（获得经验值并升级）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Ptolus: The Spire
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。