What is Sum Master?
Sum Master is a free puzzle game with casual, math and relax elements that you can play online in your web browser on Gameziko. It needs no download, no install and no account. Sum Master is an engaging and challenging number puzzle game designed to enhance your mental arithmetic and logical reasoning skills.
How to play Sum Master
- Press "Play now" on the game screen. Sum Master loads inside the player; some games take up to 20 seconds and may show a short ad first.
- Select the numbers so that: - Sum of numbers in every row equals the clue number on the right. - Sum of numbers in every column equals the clue number at the top. - Sum of numbers in every colored region matches the small number inside that region.
- Use the full-screen button at the bottom right of the player for a bigger view, and press Esc to leave full screen.
Game details
| Category | Puzzle |
|---|---|
| Tags | Casual, math, relax |
| Controls | Shown in the game |
| Screen | Portrait (360 × 640) |
| Price | Free |
| Download or sign-up | Not needed |
| Distributed by | GameDistribution |
| Added to Gameziko | 30 September 2026 |
Description from the developer
Sum Master is an engaging and challenging number puzzle game designed to enhance your mental arithmetic and logical reasoning skills. The objective is to select numbers within a grid so that the sums of each row, column, and colored region match the specified targets. Each puzzle has a unique solution, requiring players to carefully consider which numbers to include or exclude. The game offers a stimulating experience that combines fun with educational value.
Sum Master: frequently asked questions
Is Sum Master free to play?
Yes. Sum Master is free to play on Gameziko, with no download and no account needed. Like most free web games, it is funded by ads, so it may show a short ad before or between rounds.
What are the controls in Sum Master?
The developer's instructions for Sum Master say: "Select the numbers so that: - Sum of numbers in every row equals the clue number on the right. - Sum of numbers in every column equals the clue number at the top. - Sum of numbers in every colored region matches the small number inside that region."
Can I play Sum Master on a phone or tablet?
Sum Master is an HTML5 game, so it opens in modern mobile browsers as well as on a computer. Its controls were designed mainly for a mouse, so a computer usually gives the smoothest experience.
What games are similar to Sum Master?
If you like Sum Master, try Max Mixed Cocktails, Crossmath Challenge and Sort Balls - Cones. They are puzzle games with similar themes, and you can find more in the Puzzle category on Gameziko.
Good to know
Sum Master is made by an independent developer and delivered by GameDistribution, so Gameziko cannot change the game or recover lost progress. Any progress the game saves is kept in your browser on this device. If the game does not start, wait up to 20 seconds, allow ads for gameziko.com and try again, or report the game.