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.
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.