connect every trace.
classic flow rules, better presentation
Drag between same-colored endpoints. Every cell must be filled. Paths cannot cross — the grid is your canvas.
Solve in the minimum number of moves to earn a medal. They persist forever and show in the level select — chase mastery.
From 5×5 warm-ups to brutal 10×10 endgame boards. Every level is procedurally generated and verified solvable by the test suite.
A fresh challenge every day for 2 years. Build your streak, fill the calendar. Works fully offline — levels ship in the app.
Four board themes unlock with progress: Neon (default), Frost, Ember, Void. Each reskins trace colors and cell styling.
12 achievements on Google Play Games. One-tap cloud save. Silent sign-in — no popups. Progress follows your account.
Stuck? A hint reveals part of the solution path — always behind a confirmation dialog. No accidental reveals.
Watch a short ad for a free hint. One interstitial every 3rd level. Opt-in only — you're never forced to watch.
Remove ads permanently. Or grab a hint pack. No subscriptions, no battle pass, no currencies. Buy it once, own it.
CustomPainter rendering. No game engine. 60fps on mid-range hardware.
Offline level generator with pytest suite. 28 tests assert every level is solvable.
Achievements, cloud save, billing, and AdMob — wired behind clean facades.
Continuity is in closed testing. Join the Google Group first, then install from the Play Store.