Cardlume Rotation

Cardlume Rotation is a collection of three original card puzzles built around a single idea: taking a pack that makes no sense and making it readable again. Every deal uses one standard 52-card pack, and every result comes from planning rather than luck — there is nothing to wait for and nothing to buy. Cardlume Rotation runs entirely on your device in landscape, keeping your best runs, completion rates and recent results locally so you can watch your own mastery build game after game. Feature: • Three distinct challenges — Signal Sort, Key Rotation and Blind Decrypt, each with its own rules and rhythm
• A hint that shows you a genuinely playable move, or tells you plainly when none is left
• Unlimited undo, instant redeal, and the rules available on every board
• Best score, games completed and completion rate tracked per challenge
• A full history of your finished games, clearable whenever you like
• Card and completion sound effects with one on/off switch
• Fully offline — no account, no sign-in, no advertising, no purchases, and no device permissions requested How to play: Tap a card to pick it up, then tap where it should go. Double-tap to place a card automatically. • Signal Sort — gather all four cards of the same rank onto one channel and it decodes. An empty channel accepts any card. Decode all thirteen ranks to win.
• Key Rotation — a key seeds a ring. Send cards in ascending rank, wrapping King back to Ace; suit never matters. Park awkward cards in a holder. Close all four rings to win.
• Blind Decrypt — order columns downward in alternating colour, moving whole runs at once. Uncovering a face-down card reveals it. Build each suit from Ace to King to win. Benefits: Cardlume Rotation is designed for a quiet few minutes rather than an endless loop. Every deal rewards patience and forward thinking, so improvement is real and measurable — your completion rate tells you honestly how you are doing. Because nothing is online, there are no interruptions, no waiting, and no data leaving your device. It works on a plane, on the underground, or anywhere else, and it will not ask you for anything: no account, no email address, no notifications.