Build a Game (Capstones)

Capstones are complete games built step-by-step, the way Godot’s “Your first 3D game” teaches. Each maps to a real, shipped example in the template so you can compare your result against working code.

The capstones

Capstone	You’ll build	Exercises
Third-person character	A controllable character with a follow camera	Rapier KCC, orbit camera, AnimGraph idle/walk/run, pushable physics
First-person shooter	A pointer-locked FPS with throwables	Pointer lock, projectile physics
Vehicle	A drivable vehicle over ramps	Raycast vehicle, suspension, steering
RTS	Top-down unit command	Navmesh crowd pathfinding, marquee selection
Multiplayer arena / tanks	A networked arena	Colyseus rooms, schema sync, server-authoritative play
Ports	racing-game, ugh-guys, simcity, notblox	Real third-party games running on vgai
IK arm	An articulated arm reaching a target	Skeletal CCD inverse kinematics

Collectively the capstones exercise physics, animation, input, audio, navigation, networking, and UI — the whole engine.

In progress

Each capstone is a multi-lesson series with a video and images per lesson, validated by independent subagents, and is added once it builds from the steps and matches the shipped example.