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Built with love for puzzles.
SmartProc Games
Thanks for playing One Stroke. The goal is a sharp logic game with a clear feel in every move.
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One Stroke — One-Line Drawing Puzzle Game
Play One Stroke free in your browser — a clean, modern take on the classic one-line drawing
puzzle. Each board is a Hamiltonian path challenge: visit every playable node exactly once in
a single connected stroke. With 200 campaign levels, a daily challenge with
its own leaderboard and 31 trophies to unlock, it's easy to pick up and genuinely hard to put
down. No download, no signup — just draw.
How to Play One Stroke
Drag from the highlighted start node to any neighbouring node to begin your path. Keep
extending the line one step at a time — the level is solved the moment every node has been
visited exactly once. There is no fixed goal cell: any node can be the end of your stroke.
Drag (mouse or finger) from node to node — orthogonal steps only.
Drag back along your path, or press Z, to undo one step.
R resets the level, H shows a hint for the next recommended node, N jumps to the next level.
Hints are free in campaign mode but cost score in the daily challenge.
200 Campaign Levels, Four Difficulties
The campaign takes you from gentle warm-up grids to genuinely brain-bending boards across
four difficulty tiers: Easy, Medium, Hard and Very Hard. A full level-select screen lets you
search and filter every level by difficulty and status, and your stats — best time, average
time and win rate per difficulty — are tracked as you go.
Daily Challenge & Streaks
Every day brings a fresh set of five levels that are the same for every player in the world.
Race through them for the best combined score and time, share your result, and see where you
land on today's leaderboard. Play every day to build your daily streak — and you can even
send a challenge code to a friend for a head-to-head comparison on the exact same boards.
Trophies & Leaderboards
One Stroke includes 31 trophies across four tiers — 15 bronze, 10 silver,
5 gold and 1 platinum — covering campaign milestones, challenge feats and everything in
between. Your challenge runs are saved to a local high-score history with detailed per-run
stats, and signing in to GameVolt syncs your achievements across devices.
Plays Great on Mobile
One Stroke is built mobile-first. Draw your path with a fingertip, use the bottom tab bar to
flip between the board, menu and stats, and reach Undo, Reset, Hint and Next from dedicated
touch controls right below the board. The grid scales to any screen size, from phone to
desktop.
Free, Instant, No Download
One Stroke is part of GameVolt — a curated collection of original free
browser games. Nothing to install and no account required to play. Progress is saved locally;
sign in to sync across devices.
One Stroke FAQ
Is One Stroke free to play?
Yes. One Stroke is 100% free in your browser with no download and no signup. Sign in to GameVolt only if you want your trophies and progress synced across devices.
What kind of puzzle is One Stroke?
It's a Hamiltonian path puzzle, often called a one-line or one-stroke drawing puzzle. You must visit every playable node on the board exactly once in a single connected path, moving only in orthogonal steps.
Do I have to finish the path on a specific node?
No. One Stroke uses a free end node — the level is complete as soon as every node has been visited exactly once, no matter where your stroke ends.
How many levels does the campaign have?
There are 200 campaign levels spread across four difficulties: Easy, Medium, Hard and Very Hard. A full level-select screen lets you filter by difficulty and by solved, unsolved or locked status.
Is the daily challenge the same for everyone?
Yes — each day, all players get the same set of five levels. Compare your score and time on today's leaderboard, share your result, and keep your daily streak alive.
Does One Stroke work on phones and tablets?
Yes. Just drag your finger from node to node to draw the path. A bottom tab bar and dedicated touch buttons for Undo, Reset, Hint and Next make one-handed play comfortable on any screen.
