About Parixai
Free games and lessons that teach physics, AI and more from first principles, for anyone curious about how things work.
Why games?
People remember what they figure out themselves. Each game turns one idea into something you can poke at: change the angle, change the planet, see what happens. The lessons come after, when you already have a feel for the answer, and they build up from the simplest ideas so that nothing is taken on trust.
Privacy
This site is built so that there is almost nothing to protect:
- No accounts. Nobody signs up or logs in. We never ask for a name, age or email.
- No ads and no tracking cookies. No ad networks or social media trackers run on this site.
- Progress stays on your device. Stars, finished missions and your light or dark theme choice are saved in your browser’s local storage. Clearing your browser data removes them.
- Fonts are served from this site, so your browser doesn’t contact any font service.
If we add visitor counts later, we will use a cookieless analytics tool that counts page views without identifying anyone, and update this page first.
Contact
Spotted a mistake in the science, or have an idea for a game? We would love to hear from you.