Plumbline - The Line Between

Plumbline is a calm, colorful puzzle game built around one simple idea: connect the matching colors and fill every square on the board. Easy to learn, wonderfully hard to put down. Drag from one colored dot to its match to lay down a pipe. Do it for every color, cover every empty cell, and the puzzle clicks into place. No timers. No lives. No pressure. Just you and the grid. FEATURES - 300+ handcrafted levels across 8 difficulty packs, from breezy 5x5 warm-ups to brain-bending 14x14 grids - Endless Mode that generates fresh, always-solvable puzzles so you never run out - A new Daily Puzzle every day to keep your streak alive - Every level is machine-verified for a single, satisfying solution - Play completely offline, anywhere - no internet required - One-handed portrait play, perfect for the commute or the couch - Helpful hints whenever you get stuck - Relaxing design with smooth, glowing visuals LEVEL PACKS Warm Up, Easy Flow, Crossroads, Tight Turns, Long Haul, Master Pipes, The Grid, and more - each one a step up in challenge. Whether you have thirty seconds or thirty minutes, Plumbline is the perfect way to relax, focus, and keep your mind sharp. Connect. Fill. Solve. Download Plumbline and start flowing today!