What is GN Math?

GN Math is a free collection of 171 browser games across 9 categories, made for the short gaps in a day: the end of a class, a bus ride, a lunch break. Every game opens in one click and runs on ordinary hardware, including low-cost Chromebooks. There is nothing to install and no account to create.

The name comes from where the collection started: math and logic games such as 2048, Math Sprint Game and Sudoku Flow. Today the shelf also holds board games, solitaire, arcade shooters, racing, sports and slow-burn idle games, but numbers and puzzles are still at the heart of it. You can see the number games together on the math games page.

Why it exists

Most free game sites are heavy. They load ad scripts, video players and trackers before the game even starts, and many pull their games from outside servers that school and office networks often block. We wanted the opposite: a small, quick site where the game is the whole point.

So every game here is open source, hosted on this domain and stripped of calls to other websites. Pages stay light, fonts are served from this site, and a game only starts loading when you press play.

How a game gets on the site

1. Open license, checked by hand. We read the license of the code and of the art and sound. Only licenses that allow sharing, such as MIT, Apache, GPL or Creative Commons, are accepted. Anything with unclear or "personal use only" terms is turned down.
2. Self-hosted and cleaned. The game files are copied to this site. Outside fonts, analytics and links that phone home are removed, and the change is noted on the game page.
3. Played before it is listed. We load each game, check that the controls work with a keyboard, mouse or touch screen, and note whether it suits phones.
4. Credited. The original license file stays in the game folder, and the author, license and source code are linked on the game page and on the credits page.

How we write the game guides

Every game page has its own guide: what the game is, how to play, a controls table, tips and answers to common questions. We write them after playing the game and checking its source code for details such as key bindings, scoring and whether progress is saved. If we cannot confirm something, we leave it out rather than guess. We do not publish ratings, play counts or reviews we cannot back up.

What is in the collection

• Puzzle Games: 57 games
• Board & Card Games: 23 games
• Arcade Games: 16 games
• Action Games: 16 games
• Strategy Games: 18 games
• Sports Games: 10 games
• Racing Games: 7 games
• Adventure Games: 12 games
• Casual Games: 12 games

The games come from 73 different authors and teams. Many began as game-jam entries, hobby projects or teaching tools that their makers chose to share openly. If you are new here, start with our best picks or grab a friend for one of the 2-player games.

Our team

GN Math is run by a small independent team of game fans. Three jobs keep the site going:

• Curation: finding open-source games, checking their licenses for code, art and sound, and deciding what fits the site.
• Testing: loading every game in a browser, checking keyboard, mouse and touch controls, and confirming that nothing loads from outside servers.
• Writing: researching each game in its source code and writing the guide, controls table, tips and answers, following our editorial guidelines.

We are not affiliated with any game publisher, and no developer pays to be listed. The games themselves are the work of their original authors, credited on every game page.

Safety and privacy

There are no sign-ups, no chat and no downloads. Some games keep a high score in your own browser, and that data never leaves your device. Read more on is GN Math safe? and in our privacy policy.

Get in touch

Spotted a broken game, a mistake in a guide, or made one of these games and want something changed? Email contact@gnsmath.com or use the contact page. We read every message.