2015 · ソフトウェア（マップ、キャラシート等）
Spell Law (RMSS/RMFRP)
This digital expansion for ERA adds the complete spell lists, spell descriptions, attack tables, and critical tables from all three volumes of RMSS/RMFRP Spell Law. Characters can learn spells and access their descriptions during adventures, while the game master can record castings and calculate penalties for preparation time, hand use, and other factors. The package also supports directed and area elemental attacks, with seven corresponding attack tables and four elemental critical tables. ERA runs on Windows, macOS, and Linux.
属性／ステータス制（STR、CON、PERなど）ポイント制（ポイントを割り振ってスキルや能力を得る）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。