Short or Long? Crypto is a free chart-guessing game built on historical crypto candles—not live trading. Each round shows 30 normalized candles. Predict the next 10: will price go LONG (+3%), stay flat, or SHORT (-3%)? Play Daily Challenge (one puzzle per day, share & compare with friends) or Endless Survival (3 lives, leaderboard). Charts are normalized for fair play—no dollar amounts, no spoilers. Korean & English. Built as a non-commercial student project; not investment advice.