Sumtastic - Math Puzzle Game

Sumtastic is a relaxing yet challenging math puzzle game built around a simple idea: fill the grid so that every row and column adds up to the target sum. No luck, no timers forcing your hand — just pure logic and numbers.

HOW TO PLAY

Each puzzle gives you a grid of numbers and a target sum for every row and column. Select the correct cells to keep so that each row and column total matches its target. Every puzzle has exactly one solution — it's all about deduction, not guessing.

400 HANDCRAFTED LEVELS

Progress through 400 levels that scale from cozy 3x3 grids to brain-bending 7x7 challenges. The difficulty curve starts gentle so anyone can learn the rules in seconds, then gradually introduces bigger grids and trickier number combinations.

5 DIFFICULTY TIERS

Very Easy, Easy, Medium, Hard, and Very Hard — every level is built from one of these tiers, so you always know what kind of challenge is coming, whether you want a quick warm-up or a serious brain workout.

WHY YOU'LL LOVE SUMTASTIC

Simple rules, deep strategy — easy to learn, satisfying to master

Bite-sized puzzles perfect for short breaks or long sessions

A calm, clean design that keeps the focus on the numbers

No skill ceiling — from beginners to logic-puzzle veterans

Play offline, anytime, anywhere

Free to play

A GREAT BRAIN TRAINING GAME

If you enjoy number puzzles, logic games, sudoku-style challenges, or math brain teasers, Sumtastic will feel right at home. It's designed to sharpen your mental math and pattern recognition, one grid at a time.

Download Sumtastic - Math Puzzle Game now and start solving!