Unseen (itch) (Tursiops Truncatus Studios)

Unseen (formerly titled “Aura”) is an experimental puzzle game where the you must navigate through trap-riddled mazes… without being able to see anything. You must rely exclusively on your sense of hearing to survive the challenges within.

Tap on walls to find your way through mysterious mazes. Keep your ears open for the wind from bottomless pits, force fields, and even the footfalls of approaching monsters. Listen to the signature chords each door plays when knocked upon, and search for a switch that plays the matching arpeggio.

Unseen: Alpha Mission was the planned first chapter of a larger story. While this grander story was never finished, Alpha Mission enjoyed a small cult following and is still available for download.

Unseen requires Windows ME or later, and appears to still work fine on Windows 10.