Start here. How the tutorial works, what to expect from each step, and a plain-English guide to colours, coordinates and radians before you write a single line of code.

Get Three.js running and see something on screen. You'll build the three things every 3D project needs: a Scene, a Camera, and a Renderer. Then add a rotating green cube just to prove it works.

Replace the cube with an open world. A large flat plane becomes the ground. A grid overlay makes scale visible. Fog hides the edge so the terrain looks infinite. OrbitControls let you fly around and explore.

Build a tank from boxes grouped together and drive it around. W/S move forward and back, A/D rotate left and right. The camera follows behind. You'll meet delta time - the key to smooth movement on any hardware.

Aim the turret with Q and E, then press Space to fire. Shells live in an array and move forward each frame. A red target box waits to be hit. When a shell collides, the target flashes and moves somewhere new.

Add a second player on the same keyboard. Blue vs red, five hits to win. The camera watches both tanks and zooms out as they separate. Health bars, a win screen, and R to reset - it's a real game.