My sample game developed in my SpriteKit Tutorial is in the AppStore:
SourceCode: here
A more sophisticate game also based on the tutorial:
Overview: How to implement a space shooter with SpriteKit and SWIFT
- Part 1: Initial project setup, sprite creation and movement using SKAction and SKConstraint
- Part 2: Adding enemies, bullets and shooting with SKAction and SKConstraint
- Part 3: Adding a HUD with SKLabelNode and SKSpriteNode
- Part 4: Adding basic game logic and collision detection
- Part 5: Adding particles and sound
- Part 6: GameCenter integration
- Part 7: iAd integration
- Part 8: In-App Purchases