Rock Paper Scissors
The World's Largest Competitive RPS Arena
Challenger
You
なぜじゃんけん？
Play Online, Free
Battle friends, rivals and world champions in this quirky 16bit 90s Japan inspired RPS
World's Largest RPS Competition
世界最大のじゃんけん大会
The #1 global multi-player RPS competition online. Compete globally in the biggest Rock Paper Scissors league ever created.
2 Minutes a Day
1日2分
Quick daily matches fit any schedule. Play your games, check your rankings, have fun and then get on with your day.
100% Free, Zero Pay-to-Win
完全無料
We created the game we would want to play — no premium currency, no loot boxes, no advantage for paying. Pure skill determines winners.
Anti-Addictive by Design
健全なゲーム設計
Limited daily games. No infinite scrolling, no dopamine traps — a healthy way to play, enjoy, disconnect.
Deep Psychological Gameplay
心理戦
Pattern recognition, mind games, strategic depth. S.A.D.I. technology replicates real world competitive RPS tension.
Analyze your opponents
成長を記録
With more than enough detailed stats, win streaks & play style analysis to satisfy the keenest sports data geek. Or track your own growth & watch your RPS career unfold.
公式リーグ＆大会
4 Ways to Compete
Multiple arenas, different stakes, same timeless game
Top 10 Rankings
トップ10ランキング
How to Play
遊び方
Master the rules and strategies
Meet S.A.D.I.
コーチ
AI-powered strategy coaching
The Lore
じゃんけんの歴史
Ancient art of Janken
Roadmap
ロードマップ
See what's coming next