Synlume: Path Puzzle

Connect every pair. Fill every cell. Never let the trails cross. Synlume is a calm, deep logic puzzle. Every board ships with a solver-verified solution — unique from level 13 on — and every board is tested against an "obvious first try" strategy, so the levels that reach you are the ones that make you stop and think. You draw cell by cell, but the light flows as smooth, glowing trails. Explore 600 deterministic puzzles across five distinct visual worlds. Walls seal edges, bridges let two trails cross, and voids reshape the board as the campaign deepens. Each 12-level weave rises from a gentle opening to a focused finale. The first volume of 120 levels is completely free; further chapters open with short rewarded videos that you choose to watch. Free play may also show a carefully spaced ad after a completed puzzle, never during play. Prefer a lighter touch? Relaxed Mode wins by connecting alone, and filling the board becomes the road to mastery stars. SYNLUME PRO (one purchase, forever) - All 600 campaign levels unlocked, no gates - No ads, ever - The Umbra Route: 120 extra shadow levels where spent light never returns — every cell you draw costs it - Every weekly puzzle, the Deep Focus lab and advanced insights - Exclusive palettes, node gems and trail styles, plus a daily Light gift FEATURES - 600 campaign puzzles with solver-proven solutions + 120 Umbra Route levels - Daily, weekly, sprint, expert and adaptive endless modes - Aimed hints: tap the exact colour you are stuck on - Lumen Studio: palettes, node gems and trail styles for your earned Light - Optional daily reminder (local, on-device) - Instant feedback the moment a region becomes unreachable - Five atmospheric visual volumes plus the dark Umbra world - Local progress, mastery, statistics and collectibles - Reduced motion, high contrast, bold paths and Relaxed Mode - No accounts, no banner or app-open ads, no tracking by the developer - Fully playable offline Synlume respects your pace. Take a quiet minute or settle into a deeper route.