SurLeFil

A campus where you learn by playing
Sur Le Fil (SLF to its friends) is a free 3D educational game mixing science, history and humor. Prof Fil teaches, Kelhann, a mischievous little lightbulb, goes on missions, and you learn by doing: you draw, write, calculate and wire.
What you learn
Math: the four operations, signed numbers, decimals, fractions (simplify, add, subtract, multiply, divide) and telling the time.

Geometry, in the Pythagorean Room: ruler, compass, set square and protractor; angles, parallel lines, triangles, quadrilaterals, perimeter and area, all the way to the circle.

Handwriting, in the Scriptorium: lowercase, uppercase and punctuation, read by a convolutional neural network (CNN) that learns your handwriting.

Electricity: current, Ohm's law, power, then real circuits in the ElectroLab, on an electronics simulator that computes every current, plus a sandbox to build whatever you like.

Programming: Robert, a robot you drive with its own little language.

History of science: a balloon trip to meet Alessandro Volta, the inventor of the battery.

Matter, in the Experimentarium: what the world is made of.

How you learn
Spoken lessons with Prof Fil and Kelhann.

The Grading Den: more than forty corrected exercises, assisted at first, then free or timed.

MathAttack, a mental math tower defense: push back the Pluss, the Minus and the Mults with additions, subtractions and multiplication tables.

The adventure map, which shows what each lesson unlocks next.

Good to know
Free, no ads, no loot boxes.

Designed for ages 8 to 15, open to anyone curious.

Languages: English, French, Spanish, German and Brazilian Portuguese. The Scriptorium is available in English and French.

In Early Access. Coming next: algebra, the capacitor, the LED, the multimeter and mechanics.

Made solo by AngeloStudio.