Fancy yourself a keen-eyed detective? Valve has just kicked off a new Steam sale dedicated to games that challenge you to find hidden items, ranging from elusive cats to cryptic clues and downright bizarre anomalies.

The 'Steam Hidden Object Festival' runs until 2:00 AM on the 14th. The premise is simple: rummage through castles, rooms, and cluttered spaces to spot what doesn't belong. You might be surprised at just how broad this genre actually is.

The lineup is quite eclectic. You have classics like 'A Castle Full of Cats', where you hunt for felines across 20 rooms, and titles like 'The Exit 8' that turn anomaly-spotting into a tense experience. If that's not your cup of tea, try 'Quarantine Zone' to root out suspects, or 'BOX: Lost Fragments', a room-escape puzzle game that casts you as a legendary thief sneaking through a manor.

There is a massive array of titles on offer right now, all centered around that satisfying 'aha!' moment of discovery. You can browse the full list of discounted games at the official Steam Hidden Object Festival page.