Campaign
100 levels across ten hacker ranks, laid out on a winding map over a living circuit board. New board patterns unlock as you rank up.
// Coming soon to iPhone & Android
HackLine
Trace one closed loop through the network. A logic puzzle with a hacker's edge: match every number, slip past security.
// How it plays
One loop. Every number satisfied.
- Draw a single closed loop along the sides of the board, with no branches and no crossings.
- Each number tells you how many of that cell's sides the loop uses.
- Every puzzle has exactly one solution, so it's pure logic and never guesswork.
Tap a side or drag from dot to dot to draw. The game crosses out impossible sides for you, so you can stay focused on the deduction.
// Game modes
Three ways to jack in
Daily puzzles
Easy, Medium and Hard puzzles every day, each weekday with its own pattern, plus the Daily Rush: the same three-minute run for everyone, one try. Keep your streak alive.
Time challenge
Three minutes, as many puzzles as you can solve. Boards grow as you go, shapes keep changing, and every wrong line costs you five seconds.
// Climb the ranks
From Newb to Ghost
Ten tiers of ten levels. Difficulty builds through each rank, and the reasoning deepens from the basic rules to multi-step "what if" thinking.
- Newb
- Tinkerer
- Coder
- Operator
- Analyst
- Specialist
- Infiltrator
- Architect
- Elite
- Ghost
// Seven board patterns
Not just squares
Every pattern plays by the same rules but asks you to think differently.
Squares
Triangles
Hexagons
Kites
Cairo pentagons
Penrose
Random mesh
// Features
Built for puzzle lovers
Hints that teach
A hint highlights one side, tells you whether it's a line or a cross, and explains why. Made a mistake? It points it out and offers to fix it.
A living board
Puzzles draw themselves in, numbers light up when they're met, and a trace races round your loop when you crack it.
Original soundtrack
A pulsing synth soundtrack and crisp sound effects, with haptics to match.
Fair by design
Free to play, with no lives, energy, currencies or boosters. A single one-time purchase removes ads for good.
Play your way
High-contrast mode, reduced motion, and pinch-to-zoom for big boards.
No account needed
No sign-up, no login. Your progress stays on your phone.
// Screenshots
Inside the network
