User summary: 蜃気楼の12時間 (Sinkirou No Junijikan) is a game which takes place in a mirage house that exists for just 12 hours. In this game of mystery and suspense, four gentlemen, namely an Englishman, a Detective, a Thief and a Murderer, enter the house (Sinkirou-tei). Whilst they play out 12 rounds of the game, each person tries to keep their identity secret whilst also achieving their hidden goals. Publisher summary: "蜃気楼邸に集まった4人の紳士が織り成す サスペンスパーティー。 プレーヤーは英国紳士・探偵紳士・怪盗紳士・殺戮紳士 ã®ã„ãšã‚Œã‹ã«æ‰®ã—ã¦ã€è‡ªã‚‰ã®æ­£ä½“ã‚’éš ã—ã¤ã¤12ラウンドを過ごし、 それぞれに定められた勝利条件を目指します。"