
2006 · ソースブック(プレイを拡張するルール/オプション)
Gary Gygax's Cosmos Builder
A fantasy worldbuilding toolkit for creating cosmologies, planes of existence, dimensions, and the strange worlds between them. It presents common planar elements alongside guidance for blending or adapting them to form original settings. Ready-to-assemble components help users develop and share a cosmology for campaigns across different game systems, with tools that can be used independently or combined into a larger structure.
スキルベース(スキルを購入または獲得)属性/ステータス制(STR、CON、PERなど)レベル制(XPを獲得してレベルアップ)
ゲーム情報(人数、プレイ時間、対象年齢、クレジット)の出典:BoardGameGeek。

