2014 · キャンペーン設定（ゲーム世界）
Calidar: Under the Great Vault
A collection of short stories set shortly before the first episode, offering further insight into the world of Calidar. It also includes an unpublished ending, previously offered exclusively to project backers.
無料・Web、Android、iOS対応
LudoyaでCalidar: Under the Great Vaultを遊ぼう
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。