# Nerdi

> Nerdi is a hand-picked shelf of science, technology, engineering and math (STEM) and learn-to-read games for children aged about 4 to 12, played free in a web browser. Every game is made and checked by the Nerdi team; there are no ads, no chat, and children never sign in.

Each game teaches something specific (what plants need, counting to 20, phonics and first words, orbits, circuits, bridges) through play rather than quizzes. Games run on tablets and computers with nothing to install. Parents and teachers can read research-backed articles about learning through play on the Nerdi blog.

## Games

- [Orbit Lab](https://nerdi.app/g/orbit-lab/): Launch a satellite in 3D and learn why things stay in orbit. (Science, ages 8–12, about 20 minutes, playable now, needs Nerdi Unlimited)
- [Pixel Garden](https://nerdi.app/g/pixel-garden/): Plant seeds, give them sun and water, and watch a garden grow. (Science, ages 4–7, about 10 minutes, playable now, free to play)
- [Sky Island](https://nerdi.app/g/sky-island/): Control the sun, wind and cold air to bring the weather back to a floating island. (Science, ages 7–11, about 20 minutes, playable now, needs Nerdi Unlimited)
- [Robo Route](https://nerdi.app/g/robo-route/): Code a little robot across floating 3D islands to find its battery. (Technology, ages 6–10, about 25 minutes, playable now, free to play)
- [Rover Ridge](https://nerdi.app/g/rover-ridge/): Program a brave little Mars rover that senses rocks, craters, ice and storms, and decides for itself. (Technology, ages 7–11, about 20 minutes, playable now, needs Nerdi Unlimited)
- [Bridge Builders](https://nerdi.app/g/bridge-builders/): Build 3D bridges across the canyon, then send a truck over to test them. (Engineering, ages 8–12, about 30 minutes, playable now, free to play)
- [Circuit City](https://nerdi.app/g/circuit-city/): Wire real circuits to bring a blacked-out 3D city back to life. (Engineering, ages 9–12, about 30 minutes, playable now, needs Nerdi Unlimited)
- [Coaster Canyon](https://nerdi.app/g/coaster-canyon/): Design roller coasters for a desert canyon theme park, then ride them and see the physics. (Engineering, ages 8–12, about 25 minutes, playable now, needs Nerdi Unlimited)
- [Crystal Caverns](https://nerdi.app/g/crystal-caverns/): Light up dark crystal caves with equal groups, arrays and fair shares. (Math, ages 7–10, about 15 minutes, playable now, needs Nerdi Unlimited)
- [Fraction Bakery](https://nerdi.app/g/fraction-bakery/): Cut pies, cakes and brownies into equal parts and serve exactly what each customer orders. (Math, ages 7–10, about 8 minutes, playable now, needs Nerdi Unlimited)
- [Maple Market](https://nerdi.app/g/maple-market/): Help a cozy autumn town through Thanksgiving week with harvest math, recipes, smart deals and a food drive. (Math, ages 8–12, about 20 minutes, playable now, needs Nerdi Unlimited)
- [Sum Sprint](https://nerdi.app/g/sum-sprint/): Run, steer into the right answer, and keep your streak alive. (Math, ages 6–9, about 5 minutes, playable now, needs Nerdi Unlimited)
- [Tide Pool](https://nerdi.app/g/tide-pool/): Count sea creatures to unlock ocean worlds, from a tide pool to the deep sea. (Math, ages 5–8, about 15 minutes, playable now, free to play)
- [Inkwood](https://nerdi.app/g/inkwood/): Read sentences and stories to paint a storybook forest back to life. (Reading, ages 6–9, about 15 minutes, playable now, needs Nerdi Unlimited)
- [Lantern Isle](https://nerdi.app/g/lantern-isle/): Read words to bring a sleepy island back to life, one lantern at a time. (Reading, ages 4–7, about 15 minutes, playable now, free to play)

## Blog

- [ABCmouse vs Nerdi: which learning app fits your child?](https://nerdi.app/blog/abcmouse-vs-nerdi/): An honest comparison of ABCmouse and Nerdi: ages, subjects, how children learn, rewards, accounts and privacy, progress tracking, devices and price, and which one suits your child.
- [The benefits of learning STEM with immersive games](https://nerdi.app/blog/benefits-of-learning-stem-with-immersive-games/): What the research says about learning science, technology, engineering and math through immersive games: better learning and memory, number sense from short play, stronger spatial skills, and what makes a STEM game worth a child's time.

## About

- [For grown-ups](https://nerdi.app/grown-ups/): what Nerdi is, how games are chosen, safety and privacy
- [Privacy policy](https://nerdi.app/privacy/): what Nerdi collects (nothing from children) and why
- [Terms of service](https://nerdi.app/terms/): terms for the games and the Nerdi Unlimited subscription

## Optional

- [Full text for AI assistants](https://nerdi.app/llms-full.txt): every game description and blog article in plain text
- [Sitemap](https://nerdi.app/sitemap.xml)