Life & fun · alternatives · 2026
24 alternatives to 21 Mystery
Solve 21 riddles first and get a cash prize
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. 21 Mystery launched in 2020; newer entries below may have overtaken it.
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Solve logical mystery riddles by asking AI yes/no questions
2023 · its alternatives →
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Tough puzzles, riddles and trivia for your brain
2018 · its alternatives →
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The ultimate name guessing game! Guess any name in 7 tries.
Nov 2025 · guessandmatch.com · its alternatives →
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Enhance Math skills and earn Money with this Fun Quiz Game
2019 · its alternatives →
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Brain Teasers & Riddle Games
Mar 2026 · riddle-trivia-rush.github.io · its alternatives →
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Enjoy daily live quiz games. Guess the picture and get paid!
2020 · its alternatives →
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6 numbers. 1 goal. Outsmart the puzzle before time runs out
Oct 2025 · play.google.com · its alternatives →
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Play The Mini Crossword online for free!
2025 · themini-crossword.com · its alternatives →
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The 🗺️ is your puzzle and you need to take 👀 breaks to win
Jan 2026 · lookpuzzle.com · its alternatives →
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Math game to exercise your math ability and earn money
2020 · its alternatives →
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Test Your IQ, Brain, Knowledge
2025 · apps.apple.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →