2012 · ソースブック（プレイを拡張するルール／オプション）
Dungeonslayers-X (Beta)
A modern-day roleplaying game about hidden extraterrestrials, ancient civilizations, high-level conspiracies, and other urban legends. Players work for organizations such as the FBI, Majestic-12, or the Illuminati, investigating unusual events while collecting or suppressing evidence. The setting supports tactical alien-hunting missions, investigative and paranormal scenarios, or cases involving legends such as sewer alligators and poltergeists. The open system can also include vampires, elves, magicians, and material adapted from other games in the same rules family.
シナリオ／アドベンチャー／モジュールキャンペーン設定（ゲーム世界）属性／ステータス制（STR、CON、PERなど）ダイス（主にd20）ポイント制（ポイントを割り振ってスキルや能力を得る）
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。