Features — Circuit Trace

Core Gameplay

The main experience

The puzzles themselves. Hand-crafted, calm, elegant.

🧩

500+ handcrafted puzzles

Every puzzle is designed by hand to have exactly one elegant solution. No procedurally-generated noise in the campaign — every level earned its place.

👆

One-finger controls

Tap and drag to draw. Lift to end a line. That's it. Works great one-handed on the bus, in bed, during a coffee break.

⭐

Three-star scoring

Earn ★★★ by solving without UNDO or RESET and within the move limit. Perfect runs unlock extra achievements and badges.

🔄

Unlimited retries

No lives system. No wait timers. Stuck? Reset instantly and try again. No energy. No pay-to-skip.

⏮️

UNDO + Hint system

UNDO rewinds your last stroke. Hint shows the full next line of your last-touched color — enough to guide you, not solve for you.

🎓

Tutorial demo

Interactive hands-on tutorial walks new players through mechanics. No reading walls of text. Learn by doing.

Game Modes

Seven ways to play

From the main 100-level campaign to infinite procedural puzzles and 60-second sprints.

🎯

Circuit Trace campaign

100 levels across 10 sectors. Each sector introduces a new mechanic. Progressive difficulty, cinematic sector unlocks.

●

Classic

100 pure Flow-style puzzles with no special mechanics. The calming, meditative version.

▶

Diodes

100 puzzles with one-way arrow constraints. Think before you draw.

◉

Portals

100 teleport puzzles. Linked portals warp your path across the grid.

★

Arcade

100 mastery puzzles with all mechanics stacked. The gauntlet mode.

∞

Endless

Infinite procedurally-generated puzzles 5×5 to 9×9. Pick your size and chain unlimited solves.

⚡

Expert preview

Random sector 8-9 puzzle on tap. Taste of late-campaign difficulty without needing to unlock it.

All modes in detail →

Daily & Competitive

Something new every day

Fresh content, global challenges, and leaderboards to climb.

📅

Daily Challenge

One new 6×6 puzzle every day, seeded globally. Everyone plays the same board. Share your time Wordle-style.

🗓️

Weekly Puzzles

Six fresh puzzles per week. One unlocks each weekday — progressively harder from Monday warm-up to Saturday expert.

⏱️

Time Trial

60-second sprint mode. Solve as many puzzles as you can. Chase your BEST TODAY and ALL-TIME record.

🏆

Google Play Games

23 achievements to earn. Three global leaderboards: Daily, Time Trial, Endless streak. Opt-in sign-in.

☁️

Cloud save

Progress follows you across devices with Google Play Games sign-in. Completely optional — plays great anonymous.

📊

Statistics

Track your solved count, perfect streaks, personal bests, and sector progression — all local, no account needed.

User-Generated Content

Build & share your own.

The built-in Puzzle Editor turns players into creators. Design puzzles, save your library, challenge friends with short codes.

→5×5 to 8×8 grids — pick your canvas size
→Dots + Diodes — place colored pairs and one-way arrows
→Live validation — editor confirms solvability before you share
→5-slot library — save, tweak, re-share
→Short codes — format CT-XXXXX-XXXXX-...

Deep-dive into the Editor →

Puzzle Editor — designing a 7×7 with diodes

Quality of Life

Built with care

The small details that make a game pleasant to come back to.

🌐

6 languages

English · Nederlands · Deutsch · Français · Español · Português. All UI, hints, and tutorials fully translated.

📴

Offline-first

Fully playable without internet. No forced login. Cloud save only if you want it.

🔒

Privacy respected

No tracking cookies. No dark patterns. No data sold. Only Play Games Services uses your Google ID — and only if you opt in.

💡

Smart hints

Hints show the full next line of your last-touched color — not just one step. Help without spoiling the puzzle.

🚫

Remove Ads IAP

Optional one-time €3.99 purchase removes every ad forever. Game is fully free; ads only ever appear between campaign levels.

⭐

In-App Review

Non-intrusive rating prompt via Google Play's native API. No popups, no notifications — only after meaningful progress.

Ready to play?

500+ puzzles. 7 modes. Puzzle Editor. All free on Google Play.

Get it onGoogle Play