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Daily logic puzzles on village rooftops
Basel1905 › Board, card and logic games
Murder Mystery in a Phone






Case 01 is completely free. Open Irene’s phone, pin the evidence on the corkboard and prove what happened the night she vanished in Vigo.
Investigate inside someone else’s phone. Read their messages, look at their photos with time and place, listen to their recordings and break into the password-locked apps. Pin the evidence on a corkboard, join it with red string and close each chapter by proving your answer.
Six chapters and a few hours of investigation per case.
A short logic case every day, the same for everyone: place the suspects using the clues and accuse the culprit. Streak, calendar and last week’s archive.
Case 01 and the daily case are free. Buy cases one by one, the three-case pack or the detective pass (every case, every new one, no ads and unlimited hints). No loot boxes, no coins.
Six languages, optional large text, desk sounds and soft rain if you like. The stories are fiction; the places are real.
Every case happens inside someone else’s phone. Read their messages, look at their photos (zoom in and tap the details), listen to their recordings and open their apps. Press and hold anything that looks important to pin it on the board.
On the board, tap one piece of evidence and then another to join them with red string. If they are connected in the case, the string stays and tells you why; if not, it falls and you lose nothing. Press and hold a card to move it.
Each chapter closes with one to three questions. Choose the answer and attach the evidence from the board that proves it. If something doesn’t fit, the game tells you what, with no penalty.
You have three hints per chapter, from gentle to direct: where to look, what to join and the answer. Watch a short ad for another, or get unlimited hints with the pass or «No ads». Your final grade depends on hints and mistakes.
Some apps on the phone are locked. The password can always be worked out from something you can already see: an important date, a name… You can try as many times as you like.
Every day there is a short logic case, the same for everyone. Mark ✓ and ✗ in the grid using the clues and accuse the culprit. Mondays are easier and weekends harder. The archive keeps the last seven days.
Case 04, «Mareas de Bilbao» (Bilbao Tides), is already in the app and opens on 1 December 2026 by your phone’s date.
If a purchase doesn’t show, use Settings › Restore purchases with the same App Store or Google Play account.