Free Rock Paper Scissors
Challenge the computer to rock paper scissors — fair random picks, live score tracking, and instant results every round.
The computer picks with cryptographic randomness — no patterns to exploit.
How to play
- Click Rock, Paper, or Scissors.
- The computer reveals its pick instantly — rock crushes scissors, scissors cut paper, paper covers rock.
- Your wins, losses, and ties are tracked below. Reset any time for a fresh match.
A game older than you think
Rock paper scissors is centuries old — its ancestor, jan-ken, was played in 17th-century Japan, and similar hand games existed in China centuries before that. The genius of the game is its perfect balance: with three options in a cycle, no single choice beats the others, so every round is a pure mind game. That is why it is still the world’s favorite tiebreaker, from playground disputes to a 2006 Christie’s auction where two firms played it to decide who would handle a $20 million art sale. Statistically, humans are terrible at being random: most players lead with rock, and winners tend to repeat their winning move. The computer here has no such tells — it draws from your browser’s cryptographic random generator, so the only winning strategy is to be as unpredictable as it is.
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Frequently asked questions
Is the computer truly random?
Yes. Each pick comes from your browser’s cryptographic random number generator, the same source used for security-sensitive randomness. There are no patterns to learn.
What are the official rules?
Rock crushes scissors, scissors cut paper, paper covers rock. Same pick on both sides is a tie and the round is replayed — or just counted as a tie here.
Can I play against a friend?
This version is you vs the computer. For two humans, one player can look away while the other clicks — honor system applies.
Is my score saved?
Scores live only for your current page visit. Refreshing resets them — a feature, not a bug, for settling rematches.