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Shinjuku, 2023. The protagonist, Chiharu Izuki, lacks self-confidence due to the trauma of once being kidnapped, and spend her days unable to help anyone at all. One day, while searching for a missing person at her detective agency job, she comes cross the mysterious app “Protea.” It was a crime prediction artificial intelligence developed by the Metropolitan Police Department and currently being tested in the Shinjuku Ward. Guided by Protea’s predictions, Chihari encounters various incidents. She meets a detective who asks for her cooperation, a mysterious boy who for some reason appears at the scene of the crime, and others. Chiharu’s new life of cooperative work to prevent incidents before they occur has begun…!
Game modes: Single player
Right now the lowest price for Mizen Tantei: The Protea Cases we're tracking is $12.99 at Steam. We compare 1 store and prices refresh every few minutes.
The lowest price we've recorded for Mizen Tantei: The Protea Cases is $7.79 at Steam on August 24, 2026. The current best price is about 67% above that low.
90% of 10 Steam user reviews for Mizen Tantei: The Protea Cases are positive ("Positive").
Mizen Tantei: The Protea Cases released on July 28, 2022, developed by Orange and published by Orange.
Mizen Tantei: The Protea Cases is available on PlayStation 4, Android, PC (Microsoft Windows), iOS, Nintendo Switch. It supports single player.
Mizen Tantei: The Protea Cases last hit a new low of $7.79 on August 24, 2026 at Steam. Current best price is $12.99. Prices on this page refresh every few minutes, so check back around seasonal sales for new lows.
The cheapest Mizen Tantei: The Protea Cases price right now is $12.99 at Steam.
| Store | Discount | Price | Buy link |
|---|---|---|---|
 SteamBest price | — | $12.99 | Buy Mizen Tantei: The Protea Cases at Steam |
All-time low: $7.79 at Steam on Aug 24, 2026 — the current best price is 67% above it.
Prices in USD, refreshed every few minutes. Switch currency on this page for EUR/GBP/BRL and more.
