Glyn vs Sum Fall

Discover a one-of-a-kind puzzle experience! Count to 4, sharpen your observation skills, and dive into a world of charming retro pixel art, all set to a soothing zen soundtrack. Simple to learn, yet deeply satisfying—are you ready for the challenge?

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.