2013 · ソースブック（プレイを拡張するルール／オプション）
Era Report: 3145
In 3132, the collapse of most hyperpulse generators cuts off communication across the Inner Sphere and ushers in a new Dark Age. Former allies and ancient rivals prepare for conflict as the Republic of the Sphere faces threats from every direction. This sourcebook surveys the major factions active during the Dark Age, along with notable personalities, military forces, and the era’s technological capabilities. It also includes advanced campaign rules for games using either the Total Warfare rules or the A Time of War roleplaying system.
- プレイ人数
- 0
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）ライフパス型キャラクター生成（キャラクターは出生時から始まる）
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。