Kamaitachi no Yoru is simply one of the most important Japanese games in history, period. In the historical trajectory of novel games, if Otogirisou, Chunsoft's previous gane, is Pac-Land, this is Super Mario Brothers. It is that foundational in the storytelling and design paradigms it codified.
I'm trembling while writing this: Kamaitachi no yoru—not the PC remake, not the iOS port, but the actual original SFC version—has been translated at last by ButThouMust, who graciously brought us an English patch for Otogirisou in the past. This is HISTORICAL.