Chromatica
A colour-based logic deduction puzzle game. Fill a grid with colours — each cell's number tells you how many of its neighbours must match it. Deduce the rest through pure reasoning.
Every puzzle is procedurally generated and played fresh every time. The generator picks the hardest of 20 random seeds — no two games are ever the same. Tap a cell to cycle colours, satisfy every neighbour count and colour quota, and the grid is solved.
Features
Colour Logic Puzzles
Each puzzle hides a unique colour arrangement. Tap a cell to cycle through the palette; long-press to clear. A cell's target number (0–4) tells you exactly how many orthogonal neighbours must share its colour — no guessing, just deduction.
Target Numbers
Each cell displays a number 0–4. That's the count of orthogonal neighbours that must match its colour. Zero means all neighbours must differ; four means all must match.
Colour Quotas
From Medium tier onward, coloured dots appear on row and column edges — they tell you how many cells of each colour that line needs. Another constraint to factor into your logic.
≠N Cells (Hard+)
From Hard tier upward, some cells invert: they must avoid exactly N matching neighbours. A ≠1 cell means all neighbours must differ from it. Watch for the negation indicator.
Quest-Gated Progression
No arbitrary level grind. Each tier is unlocked by completing a quest gate — a set of conditions that teach you the mechanics. Solve puzzles cleanly to prove you're ready for the next tier.
6 Quest Gates
From Tutorial through Master, each gate requires specific feats: solve N puzzles, finish with ≤1 hint, complete with zero rerolls, stay under a move budget. All conditions must pass simultaneously.
7 Tiers of Difficulty
Tutorial (3×3, 2 colours) → Easy (4×4, 3 colours) → Medium (5×5, 3 colours) → Medium+ (5×5, 4 colours) → Hard (6×6, 4 colours) → Expert (7×7, 4 colours) → Master (7×7, 5 colours). Larger grids, more colours, fewer prefilled cells.
Unlimited Replayability
Every puzzle is procedurally generated from the hardest of 20 random seeds. No two games are ever the same. Master mode offers infinite puzzles beyond the tier progression.
Accessibility First
Puzzle games should be for everyone. Chromatica is built with accessibility baked in from day one.
Colourblind Mode
Toggle the Wong Nature palette — 6 colours distinguishable under protanopia, deuteranopia, and tritanopia. Paired with pattern overlays for non-colour identification.
Reduced Animations
Disable pop and flash effects for motion sensitivity. Every interaction stays functional without visual flourishes.
TalkBack & Haptics
Full semantic labels on every cell for screen reader users. Light, medium, and heavy haptic feedback on all interactions. In-memory WAV-synthesized audio for tap, solve, and error sounds.
Hints, Rerolls & Undo
Stuck on a tough puzzle? The hint system reveals the next logical step with an explanation. Free rerolls generate a fresh puzzle, and undo lets you backtrack freely.
Per-Tier Hint Budgets
Tutorial through Medium+ get 2 hints per puzzle; Hard gets 1; Expert and Master get none. Hints reveal one cell at a time, teaching deduction patterns you reuse.
Free Rerolls
Each puzzle starts with 2 free rerolls — generate an entirely new puzzle with a fresh layout. Run out? Watch a rewarded ad to earn an extra reroll.
Generous Undo
Made a wrong move? Undo freely with the last 50 moves saved. Experiment with different colours and backtrack any time — no penalty.
Cloud Save via Google Play Games
Your progress follows you across devices. Sign in with your Google Play Games account — no separate account needed, just the Google account already on your phone.
Automatic Sync
Tier, level, quest progression, and scores are saved automatically. Silent sign-in at startup means no extra taps — just pick up where you left off.
Conflict Resolution
If you've been playing on two devices, Chromatica keeps the most recent save — no data loss, no merge conflicts to resolve.
Opt-In & Privacy
Cloud save is entirely optional. The app works fully offline without signing in. All local data stays on your device.
Clean & Customizable
No clutter, no distracting UI, no ads during gameplay. Just you and the puzzle — exactly the way you want it.
Two Colour Selection Modes
Tap-to-cycle advances through colours with each tap. Palette bar mode lets you pick a colour first, then tap cells to assign it. Switch any time in Settings.
Your Theme
Light, dark, or system theme with the clean Space Grotesk typeface. Settings, sounds, haptics, auto-advance — everything persists across sessions.
Interstitials Between Puzzles
Non-personalised ads appear between puzzles, never during gameplay — with a 5-minute cooldown so they stay out of your way. Rewarded ads earn extra rerolls when you want them.
Why Chromatica?
Your Data Stays Yours
No account required. All puzzle progress and preferences live on your device. Optional cloud save via Google Play Games is opt-in.
Fully Offline
Every puzzle generates and plays without an internet connection. Optional ads and cloud save work when you're online.
Designed for Focus
Ads only appear between puzzles — never during gameplay. No banners, no popups over the grid. Just uninterrupted thinking time on every puzzle.