Choose
Lock in a secret number inside the selected difficulty range.
Quick puzzle duels
Pick a number.
Outguess your rival.
A fast strategy game where every guess brings you closer. Play against AI, challenge friends, or climb the ranked leaderboard.
⚡ 20-second turns
🏆 Ranked ELO
👥 Private rooms
✦
✦
✧
VS
YOU
RIVAL
HIGHER ↑
LOWER ↓
GUESS ?
WIN ★
Easy to learn. Hard to master.
One secret number.
Three simple moves.
Choose your number, follow the higher-or-lower clues, and solve the range before your opponent solves yours.
Read the clues
Every turn tells you higher or lower. Narrow the possibilities fast.
Outplay
Find the hidden number first, earn ELO, and climb the rankings.
Play your way
More than a guessing game.
Online & offline
Practice with AI, join ranked matchmaking, or duel a friend.
Your character, your style
Build an avatar with unique bodies, outfits, and premium packs.
Daily challenges
Come back for new challenges, notifications, and competitive progress.
Four ways to duel
How high can you go?
Start small or jump straight into a million possible answers.
Easy0–100Perfect warm-up
Medium0–1KThink faster
Hard0–10KSharp minds only
Nightmare0–1MUltimate challenge
Your next rival is waiting
Ready to duel?
Download Number Duel and discover how addictive one simple number can be.