Sum Foundry: Number Puzzle

Discover your daily moment of balance with Sum Foundry.
If you love relaxing number puzzles, cozy games, and satisfying logic challenges, you have found your next perfect fit.

Sum Foundry is an untimed, beautifully crafted logic puzzle game where every placement matters. Place numbered ceramic chips into empty slots on the grid so that every row and column matches its target sum. One thoughtful move brings the entire board into balance!

🧩 A COZY LOGIC EXPERIENCE
Take a break from the rush of daily life. There are no timers, no stressful races, and no streaks to lose. Just you, a beautifully designed grid, and the satisfying click of a perfect fit. Enjoy free corrections and unlimited undos as you play at your own pace.

🌅 RESTORE THE HARBOR
As you solve puzzles, you will embark on a satisfying journey to light up a picturesque waterfront. Progress through three beautifully illustrated workshops:
• The Copper Workshop
• The Glass Garden
• The Harbor Light

Solve your way through nine meticulously crafted boards, graduating from accessible 3x3 grids to intricate 4x4 challenges.

💡 PLAY, EARN, CRAFT
Engage with the Daily Forge for fresh number puzzles. Complete relaxing daily commissions to earn hint fragments. Combine three fragments to craft an explained hint that helps you learn by doing—a guided move, then it’s your turn.

✨ KEY FEATURES:
• Elegant Puzzle Mechanics: Place numbered chips to balance crossing totals in rows and columns.
• Untimed & Relaxing: Play entirely at your own pace with zero pressure.
• Beautiful Aesthetics: Enjoy tactile ceramic chips, shallow brass edges, and warm, soothing visuals.
• Daily Challenges: Fresh logic puzzles added every day in the Daily Forge.
• No Penalties: Experiment freely with infinite undo and free corrections.
• Cozy Progression: Restore three stunning harbor locations, one board at a time.

A little logic, beautifully made. Download Sum Foundry today and find your perfect fit!

Recent changes:
• Explore 30 levels across six chapters with new rune challenges.
• Earn coins from levels, daily streaks, hourly spins, chests, and optional rewarded ads.
• Unlock powers, upgrades, and colorful chip finishes.
• Enjoy polished dialogs, icon-based menus, and animated results.
• Improved ad timing and duplicate reward protection.
• Added landscape, tablet, and resizable-window layouts.
• Improved edge-to-edge display and optimized artwork loading.