Iseshima mystery annai: Itsuwari no Kuro shinnjyu is tracked on SteamScope with live Steam concurrent player data, historical charts, and a SteamScope Score of 47/100 (Declining). Search for "Iseshima mystery annai: Itsuwari no Kuro shinnjyu player count" or "Iseshima mystery annai: Itsuwari no Kuro shinnjyu steam charts" to monitor how many people are playing right now and how activity compares with past peaks.

Iseshima mystery annai: Itsuwari no Kuro shinnjyu is developed by Happymeal Inc., published by Flyhigh Works, released 24 Jul 2019, a Adventure, RPG title. Available on Windows.

Iseshima mystery annai: Itsuwari no Kuro shinnjyu currently reports 1 concurrent Steam players with a 24-hour peak of 1 and an all-time peak of 1.

Among tracked Steam titles, Iseshima mystery annai: Itsuwari no Kuro shinnjyu ranks #15918 of 18,131 by momentum score.

Iseshima mystery annai: Itsuwari no Kuro shinnjyu has lost momentum recently. With a SteamScope Score of 47/100 (Declining), live players are lower relative to its all-time peak of 1.

Iseshima mystery annai: Itsuwari no Kuro shinnjyu has 12 Steam achievements tracked on SteamScope.

The average global unlock rate across all achievements is 32%, giving a baseline for overall completion difficulty.

The most common achievement is "そうだ！伊勢に行こう！" with a 78.7% unlock rate.

The rarest achievement is "忍者カイ名人" — only 4.3% of players have unlocked it (Very Hard).