Ask yes/no questions to deduce your opponent's secret country flag. No memorization required. Play solo against an AI bot or challenge a friend live.
- Each player holds a secret country flag
- Take turns asking yes/no questions: "Is it in Europe?", "Does the flag have red?"
- Narrow down the candidates, then make your guess
- Three wrong guesses and you lose, so make them count
- Single Player: play against an AI bot at Easy, Hard, or God difficulty
- Multiplayer: create a room and challenge a friend live, or get matched with a random opponent
- Daily Challenge: one shared flag every day across three difficulty tiers, with a leaderboard
- Learn Mode: study flags with daily flashcard sessions and track your progress
FlagsDuel covers 190+ country flags. It's free, no download needed, and works on mobile and desktop. Learn more.