Rock Paper Scissors
Play the classic hand game against the computer. Choose classic or extended mode with Lizard and Spock. Best-of series with full statistics.
All-Time Statistics
Rock Paper Scissors — The Classic Hand Game
Rock Paper Scissors is one of the world's most recognized hand games, used for quick decisions and friendly competition. This digital version adds animated gestures, statistics tracking, and the popular Lizard Spock extension.
Play best-of-3, 5, or 10 matches against the computer with full win/loss/draw statistics stored locally. All randomness uses the Web Crypto API for fair play.
How Rock Paper Scissors Works
- Choose your match format: best of 3, 5, or 10 rounds
- Click your choice — Rock, Paper, or Scissors (or Lizard/Spock in extended mode)
- The computer reveals its random choice simultaneously
- First to win the majority of rounds wins the match
Game Theory Guide
Against a truly random opponent, no strategy can give you an edge — each choice wins exactly one-third of the time. However, humans playing against each other exhibit predictable patterns: winners tend to repeat their choice, losers tend to switch. This psychological insight is what makes the game fascinating in game theory.
When to Play
Use as a quick decision-making tool when you cannot decide between options, as a fun break during work, or to settle friendly disputes. The Lizard Spock variant adds complexity for players who find the classic version too simple.
Common Use Cases
- •Quick decision making between two options
- •Fun break during work or study sessions
- •Teaching probability and game theory concepts
- •Settling friendly disputes or choosing who goes first
Expert Tips
- ✱Against humans, throw Paper first — studies show most people default to Rock on their first throw.
- ✱Use the extended Lizard Spock mode for a more strategic experience with more possible outcomes.
- ✱Track your win rate over many games to see if you have unconscious patterns in your choices.
Frequently Asked Questions
- Yes, the computer uses the Web Crypto API for cryptographically secure random choices.
- An extended version with 5 gestures instead of 3, popularized by The Big Bang Theory. Each gesture beats two others and loses to two others.
- Yes, wins, losses, and draws are tracked per session and displayed in real time.
- The current version is player vs computer. For two players, take turns on the same device.
Is the computer truly random?▾
What is Lizard Spock mode?▾
Are statistics tracked?▾
Can I play against another person?▾
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