Apple samples on GameplayKit updated to the latest Xcode/Swift.
✅ Updated
⏳ Not yet updated
(Tested on Xcode 12.2 beta 3 / Swift 5.3.1)
✅ AgentsCatalog: Using the Agents System (agent-goal-behavior) in GameplayKit
✅ Boxes: GameplayKit Entity-Component Basics
✅ DemoBots: Building a Cross Platform Game with SpriteKit and GameplayKit
⏳ Dispenser: GameplayKit State Machine Basics
⏳ FourInARow: Using the GameplayKit Minmax Strategist for Opponent AI
⏳ Maze: Getting Started with GameplayKit
⏳ Pathfinder: GameplayKit Pathfinding Basics
✅ Fox 2: "Enhance how people interact with your game by supporting controllers that respond with haptics, lighting, and motion sensing." - Apple's WWDC 2017 | SceneKit: What's New
Not exactly from Apple, but also a pretty solid GK sample:
✅ MonstersWars: A Ray Wenderlich tutorial on GameplayKit / SpriteKit