Tectonic Logic Puzzles vs Sum Fall

Challenge your mind with Tectonic, the addictive number puzzle loved by logic fans worldwide! Easy to learn but endlessly engaging, Tectonic offers a fresh twist on classic puzzles like Sudoku and Kakuro. How to Play - Fill each region with numbers from 1 up to the region’s size. - No repeats allowed in a region. - Neighbouring cells (even diagonals!) cannot contain the same number. - Use logic, not guesswork, to solve every puzzle. Features - Multiple difficulty levels: Easy to Diabolical. - Hints system to help you when you’re stuck. - Auto Notes and manual note-taking to keep track of possibilities. - Shop for extra hints or remove ads. Why You’ll Love It Tectonic puzzles are quick to pick up but hard to put down. Whether you have 5 minutes or an hour, there’s always a puzzle that fits your mood. Sharpen your logic skills, relax your mind, and enjoy the satisfaction of cracking even the toughest challenges.

Sum Fall is the arithmetic puzzle game that plays by its own rules. Place numbered pieces on the grid. Watch them fall — up or down, you never know which way. When two pieces meet and their values add up to 0 or 10, they vanish. Clear them all before the grid overflows. Simple to learn. Fiendishly hard to master. HOW IT WORKS → Each turn, choose where to place a piece in the center row → Pieces fall toward the ceiling or floor — direction is a mystery → Adjacent pieces fuse: green (+) adds, red (−) subtracts → Result is 0 or 10? Both pieces vanish and you score → Chain vanishes for multiplier bonuses: ×1.5 → ×2 → ×3 → ×5 NEW — DAILY CHALLENGE One handcrafted puzzle a day — the same for every player. Clear the board, race the clock, earn up to 3 stars. Keep your streak alive, replay past days from the calendar, and complete a full month to earn a trophy. NEW — DEMOLITION An endless series of solvable puzzle levels. Destroy every golden cell with a limited piece budget. Bombs, armored cells, mystery values, cyclic counters… plan your chains, finish under par, claim all 3 stars. THREE ENDLESS MODES EASY — No pressure. Practice at your own pace. CLASSIC — From turn 10, a new row pushes in. Stay ahead of it. HARDCORE — Both sides push simultaneously. Every move counts. POWER-UPS • Reveal Directions — see where all pieces will fall before committing • Change Direction — flip a piece's trajectory • Change Value — set any piece to the number you need (1–9) • Change Operation — switch + and − to make the math work for you • Storage — hold a piece aside and use it later FEATURES • Daily challenge with streaks, calendar and monthly trophies • Global leaderboards via Game Center • Dark mode • Second chance to keep a great run alive • Offline play — no Wi-Fi needed • Auto-save — resume any game where you left off • Lives system — regenerate over time (infinite in Premium) • No account required • English, French, Spanish, German, Portuguese PREMIUM (OPTIONAL) Remove ads, unlock infinite lives, and get an extra charge for every power-up. One purchase. No subscription. No tricks. Think you can top the leaderboard? Prove it.