Rollo: One Line Brain Puzzle

3 in 4 of our players get stuck on the first try after level 30. How many tries will you need? A new puzzle and a reward every day.

Rollo is a one-finger brain puzzle. Swipe: the ball rolls until it hits something and paints its path. Paint is a wall, so you can never cross it again. Fill every tile to finish the level.

You learn the rule in 10 seconds. Mastering it takes much longer: take the wrong order and your own trail traps you in a corner. The simplicity of one line puzzles, the curiosity of mazes and the "got it!" moment of logic games, all in one.

REAL NUMBERS • The first levels take about 6 seconds: warm-up rounds • After level 30, 3 in 4 of our players get stuck on the first try • Those levels take 6 tries on average How many tries will you need?

1000 LEVELS, ALL SOLVABLE • Every level is verified by a solver: each one has a solution • Difficulty rises step by step; every new obstacle is introduced with a live example • Portals, arrows, cracked tiles, one-way gates, keys and switches turn each level into a new brain teaser

REWARDS EVERY DAY • Daily reward: come back every day for hints and Solves • A 7-day calendar with a chest waiting on day 7 • Keep your streak to climb tiers: Bronze, Silver, Gold, Diamond. Higher tiers bring bigger rewards • Missed a day? You can still save your streak

A NEW PUZZLE EVERY DAY • The Daily Puzzle is the same for everyone: see how many solved it today • Finish it without Solve and earn +1 Solve

COMPETE, CLIMB TO THE TOP • Everyone on the same leaderboards: Daily, Mastery and Levels • Earn titles from Novice to Genius and show off your badge • Collect stars on every level: shortest path, first try, no undo

NEVER STUCK • No lives, no timer: undo a wrong move and try as often as you like • A hint shows the next right move • Really stuck? Watch the full solution with Solve

PLAY OFFLINE • No internet needed: on a plane, on the subway, on holiday • Your progress is backed up to the cloud, so a new phone picks up where you left off • Game Center achievements and leaderboards

CALM, CLEAN, YOUR STYLE • Minimal design with 8 free color themes: Classic, Midnight Blue, Ocean, Forest, Sepia, Sunset, Neon, Lavender • Light and dark mode • Soft notes on every move: each level is a little melody • One finger, portrait mode; 8 languages

WHO IS IT FOR? Fans of brain games, logic puzzles, mazes, IQ tests and sudoku-style thinking games; anyone who wants a quick mental workout on a break; anyone looking for a relaxing game that is never boring.

On the subway, in line, on a coffee break… Short levels, long fun.

Rollo is a one line drawing puzzle game and one of the best brain games for adults: logic puzzles, maze-like paths and relaxing games you can play offline. No wifi needed, so it is one of those offline games and puzzle games for adults that stay fun for months.

Rollo is free and contains ads. A one-time "No Ads" purchase removes banner and between-level ads. Hint and Solve packs are optional.