1. Define game requirements: scenes, entities, physics, input.
2. Configure Phaser game: renderer, dimensions, physics, scenes.
3. Structure scene architecture: lifecycle methods, transitions.
4. Create game objects: sprites, images, text, graphics.
5. Implement physics: Arcade or Matter physics, collision detection.
6. Handle input: keyboard, mouse/pointer events.
7. Create animations: define and play animations.
8. Preload assets: images, spritesheets, atlases, tilemaps, audio.