NumFlow

One path. Every square. Can you find it?

NumFlow is a number-path puzzle with a single, simple rule: start at 1, walk to the last number in order, and cover every square on the board exactly once. Easy to learn in ten seconds. Genuinely hard to master.

Each puzzle has a guaranteed solution — no dead ends, no luck, no guessing. Just you and the grid.

HOW TO PLAY
• Drag from 1 and trace a path through the grid
• Move up, down, left or right — never diagonally
• Reach the numbers in order: 1, 2, 3...
• Fill every single square to win

Miss a number or cross your own path and you lose a life. You get three.

1,100+ LEVELS THAT KEEP GROWING
Start on a gentle 8×8 grid and work up to a sprawling 30×30. Every 50 levels the board grows again, so the challenge never plateaus. Blocked cells start appearing at level 10 and multiply as you climb, forcing you to rethink routes you thought you'd mastered.

BOSS LEVELS
Every 10th level is a boss: a bigger board, more obstacles, double XP and a gold crown on the map when you beat it.

SIX WAYS TO PLAY
• Classic — the main journey through the level map
• Time Attack — beat the clock
• Limited Moves — every step counts
• Daily Challenge — the same puzzle for everyone, every day
• Endless — play forever, no level cap
• Challenge — stack modifiers like fog, blind numbers, reversed order, no-undo and moving blockers

POWER-UPS WHEN YOU'RE STUCK
• Hint — reveals the next few moves. Three free every day, and one extra for each consecutive day you play
• Freeze — stops the clock for 10 seconds
• Extra Life — get back in when you run out

DAILY CHALLENGE & STREAKS
A fresh puzzle every day, identical for every player. Keep your streak alive to earn more free hints.

152 ACHIEVEMENTS
Speed runs, perfect clears, board-size milestones, mode mastery and long-haul streaks. There's always another one just out of reach.

10 THEMES
Classic, Dark, Neon, Minimal, Nature, Space, Ocean, Candy, Retro and Glass. Pick the one that suits your eyes.

BUILT TO BE PLAYABLE BY EVERYONE
• Large number mode
• High contrast mode
• Reduced animation
• Left-handed layout
• Full screen-reader labels throughout

PLAYS ANYWHERE, KEEPS NOTHING
No account. No sign-up. No internet needed to play. Your progress, name and profile picture stay on your device — there is no server, so we never see them. Uninstall and it's gone, completely.

NumFlow is free to play and supported by ads. Watch an optional ad if you want a power-up — or just keep solving.

Perfect for a quiet commute, a coffee break, or winding down at the end of the day.

PLAY IN 17 LANGUAGES
English, Español, Português (BR), हिन्दी, Bahasa Indonesia, Deutsch, Français,
日本語, Русский, 简体中文, 한국어, Italiano, Türkçe, Tiếng Việt, ไทย, Polski and
Українська. NumFlow follows your device language, and you can change it any time in Settings.

Download NumFlow and find the path.