Lock & Key: A Magical Girl Mystery

Lock and Key: A Magical Girl Mystery is a romantic thriller visual novel starring a married couple of former Magical Girls. Along with and old friend and a new protégé, they'll undertake one last journey to free Chicago from the terrifying grip of a mysterious serial killer.

At a glance

• Platform: Windows, macOS, Linux.
• Genres: Casual.
• Release date: Sep 30, 2025.
• Steam user reviews: Positive (100% positive).
• Delivered as a Steam library entitlement — activation is handled by Steam.

Minimum

Recommended

System requirements as published by the developer on Steam.

Activate on Steam

• Open the offer above — it takes you to this game's official Steam store page.
• Buy it there, or if you bought a key elsewhere, open Steam and choose Games → Activate a Product on Steam.
• Enter the product code exactly as it was issued to you.
• The game appears in your Steam library — download and play.

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