Third-party packages:

• Udar (Inspector SceneField serializer)
• JoystickPack (modified)
• DOTween
• PlayerPrefsEditor
• Programming patterns:

StateMachine

• Factory
• ServiceLocator
• Object pooling
• Composition

Optimization features:

• Factory (for the better performance when creating many objects)
• Sprite atlases (reducing DrawCalls)
• Canvas separation (reducing canvas refresh when it changes)