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Yenra Games

Small challenges for a curious world. Play, discover something useful, and keep exploring.

Five numbered musical lanterns in a twilight courtyard, with the first lantern glowing as its note plays.
Watch the lights. Echo the melody.

Music · Memory puzzles

Melody Lanterns

Watch five illustrated lanterns light up, then echo their melody at your own pace. Each completed pattern adds a light to the garden.

Six melodies · Sound optional · No answer timer

Play Melody Lanterns
The Chocolate Box: shaped trays of dark, caramel and ivory chocolates arranged in a gift box on a walnut workbench.
Every piece has its place.

Chocolate · Spatial puzzles

The Chocolate Box

Rotate and arrange trays of chocolates until every piece fits. Fill the box with no gaps, then finish your gift with a ribbon.

Six gift boxes · Three to five trays · Untimed

Play The Chocolate Box
Robot Route: an illustrated workshop board with a rover, parcel, crates and a panel for planning its moves.
A little robot. One clever delivery.

Robotics · Programming puzzles

Robot Route

Plan a few moves, collect a parcel, and guide your rover to the dock. Run your route or step through it as you find your way around the workshop.

Six deliveries · Three simple commands · Untimed

Play Robot Route
A miniature town glowing at twilight, powered by solar, wind, and a battery.
A little planning. A town full of light.

Energy · Planning puzzles

Light Up the Town

Mix sunshine, wind, and stored energy. Run the day and watch your town light up as your plan comes together.

Four days · Three equipment types · Untimed

Play Light Up the Town
The plant game: basil, thyme, and rosemary growing in terracotta pots in a sunny courtyard.
Find a growing place for every herb.

Gardening · Placement puzzles

Right Plant, Right Place

Choose an illustrated herb and plant it in a sunny courtyard. Build six little gardens around water, space, and the way you use them.

Six gardens · Three plants each · Untimed

Play the plant game
An orderly index of ivory and teal cards, with a magnifying glass highlighting an amber card beside connected glass nodes.
Explore the vocabulary of artificial intelligence.

Artificial intelligence · Words and ideas

AI Terminology Quiz

Match a definition to its term, practice recall, or pair related ideas. Every answer is a route into the Yenra AI glossary.

Up to 10 questions per quiz · Four ways to practice · Untimed

Play the AI quiz

Play at your own pace

Echo a melody, fill a chocolate box, guide a robot, power a town, arrange a garden, or explore a set of AI terms. No account is needed, and practice progress stays in your browser when storage is available.

Follow your curiosity

Continue into the music guides, chocolate guides, robotics guides, energy guides, gardening guides or the AI glossary for explanations and practical examples.