# Graze: An arcade game that teaches. > A one-tap orbit arcade game with a library of real courses, including languages, anatomy and organic chemistry. Short lessons, recall gates and spaced review on your device. By Donovan Baney (@baney75). Page: https://dbaney.com/projects/graze/ - **Price:** Free - **Status:** Live - **Runs on:** Any modern browser; installable and offline-capable - **Built with:** JavaScript, Canvas, Web Speech, service worker - **License:** MIT - **Source:** https://github.com/baney75/graze - **Live:** https://baney75.github.io/graze/ - **Documentation:** https://dbaney.com/projects/graze/docs/ (Markdown: https://dbaney.com/projects/graze/docs.md) ## Why I built it I wanted the thing I reach for in a spare minute to teach me something real. Graze turns that minute into an arcade run: you orbit, dodge and build a multiplier, and the gates you pass through ask you to recall what you just learned. ## Learning built into the game Each course is written in original wording against free, reputable sources such as OpenStax, LibreTexts and Project Gutenberg, and each item was reviewed before release. The design leans on what holds up in learning research: retrieval practice, spacing, saying words aloud and comprehension checks. It leaves out brain-training IQ claims and speed reading, because those don't hold up. ## Yours, on your device Progress saves locally and moves between devices with transfer codes that merge instead of overwrite. The game installs like an app, works offline, and waits for you to choose when to update. ## Learn something real in a spare minute - 37 courses and about 18,300 items, including ten languages, biology, organic chemistry and functional groups, anatomy, calculus, logic, philosophy, world history and the Bible. - Short lessons, then recall gates inside the arcade loop. Choices stay hidden until you have tried to answer from memory. - A swipeable Feed built to replace scrolling with reviews, readings and quick math. - Spaced review from 10 minutes out to 180 days, with progress saved on your device. - Text-to-speech for every language item and pronunciation checks in supported browsers. ## Limits Graze helps you remember what you practice. It makes no promise about intelligence. ## Questions and answers ### What is Graze? A one-tap orbit arcade game with a library of real courses, including languages, anatomy and organic chemistry. Short lessons, recall gates and spaced review on your device. ### Is Graze free? Yes. Graze costs nothing, and its source code is on GitHub under the MIT license. ### Do I need to install Graze? No. Open Graze in a modern browser and play. You can also install it like an app, and it works offline after the first visit. ### What can I learn in Graze? 37 courses and about 18,300 items, including Spanish, French, German, Latin, Japanese and Mandarin, biology, organic chemistry, anatomy, calculus, logic, world history and the Bible. ### Where is my progress saved? In the browser on your device. Transfer codes and backup files move it to another device and merge instead of overwriting. ### Does Graze have limits? Graze helps you remember what you practice. It makes no promise about intelligence. ## Related projects - [Myelinate](https://dbaney.com/projects/myelinate/): An AI tutoring skill that teaches from your own course materials. It asks you to recall before it explains, coaches homework without doing the graded work for you, and runs as instructions for Claude Code, claude.ai or Codex. No API key or server required. - [He Lives](https://dbaney.com/projects/helives/): He Lives is a quiet, Scripture-centered website. One King James passage each hour, the words of Christ in red, and a visual meditation on Genesis 1–3. - [GeneMachine](https://dbaney.com/projects/genemachine/): A privacy-minded tool that surfaces gene–medicine evidence from CPIC guidelines and FDA labeling so patients can prepare clearer questions for their care team. An optional consumer DNA file check stays on the device.