2004 · 战役设定（游戏世界）
Amethyst Part 4
A campaign-setting supplement for a d20 System/OGL roleplaying game, presented as part of a larger work released in five sections. It develops the setting’s technology elements, including technology-focused game rules, new character classes, and equipment. It is designed for use with the D&D 3.5e Player’s Handbook, Dungeon Master’s Guide, and Monster Manual; d20 Modern is referenced but not required.
资料书（用于增强玩法的规则/选项）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 Amethyst Part 4
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。