Crime & Mystery · by RunRiva
Every mystery and motive, one swipe at a time.
Think you can crack any case? Crime & Mystery Trivia is the daily game for fans of detectives, thrillers, and whodunits — on the page and on the screen.
Free • In-app purchases • Ad-supported — with an ad-free option
Animated preview: a round of Crime & Mystery Trivia answering three real questions.
The Collection
Behind the quiz waits an album of 24 hand-made cards in 3 sets. Every game you play brings the next one closer — and you choose which card to unlock, from quiet bronze finds to full diamond scenes.
Remington, the firearms company, made typewriters. Two ways to leave a mark, one factory.— The Typewriter · Diamond card
Chemiluminescence is light made by a chemical reaction — the same trick fireflies use. Some things only show up in the dark.— Luminol · Silver card
Between rounds
Hand-crafted scenes unfold between quizzes — a running tale for this app, told one beat at a time. This is how it opens.
“Every case opens the same way: a scene, and a thread to pull.”
What's inside
Ten of the hardest questions, the same for everyone, refreshed at midnight. Build a streak and climb the global leaderboard.
From easy warm-ups to expert-level deep cuts — every question is calibrated and drawn from open, source-attributed knowledge of detective fiction, thrillers, and crime drama, on the page and on the screen.
Flawless cases, perfect streaks, difficulty mastery — a full case file of awards as you rise from Rookie to Master Detective.
Add friends, climb the global and friends-only leaderboards, and send head-to-head challenges — same ten questions, may the sharper eye win.
Clean, fast and dignified — on iPhone and Android.
Made with care
From the cover art to the medals you earn — made for this app, never off-the-shelf.
First Case 
Seasoned Investigator 
Master Sleuth 
Five Clean Cases 
Sixth Sense 
Year on the Force The studio
Crime & Mystery Trivia is one of a growing shelf of single-subject quiz apps — see all our apps.
