Hi CatastropheZero, For the hosting view, use SpriteKit's SwiftUI SpriteView, which renders an SKScene and works on both iOS and watchOS — so you avoid the platform-specific SKView (iOS) vs. WKInterfaceSKScene (watchOS) split. For input, SwiftUI supports the same basic tap/drag gestures on watchOS as on iOS, though you'll often wire them to different in-game actions per platform. There are also inputs unique to watchOS — most notably the Digital Crown via. digitalCrownRotation. To support both cleanly, keep the game logic platform-agnostic and feed it semantic intents rather than raw input. The shared engine never references a touch or the crown — each platform translates its own input into the same intents. /// hardware (touches, drags, Digital Crown) onto these cases. public enum GameIntent { case aim(at: CGPoint) // a scene-space point (e.g. iOS drag/tap location) case moveHorizontal(Double) // a relative nudge (e.g. watchOS Digital Crown delta) case primaryAction // fire / jump / select — a tap on either platform } public final class GameScene: SKScene { private let player = SKShapeNode(circleOfRadius: 20) private var targetX: CGFloat? public override func didMove(to view: SKView) { ... } /// The ONE entry point for input. Platforms call this; the scene never /// touches UIResponder, gestures, or the crown directly. public func apply(_ intent: GameIntent) { switch intent { case .aim(let p): targetX = p.x case .moveHorizontal(let d): targetX = (targetX ?? player.position.x) + CGFloat(d) * 8 case .primaryAction: fire() } } public override func update(_ currentTime: TimeInterval) { ... } private func fire() { ... } } =================================================================================== // iOS — touches → intents SpriteView(scene: scene) .gesture(DragGesture(minimumDistance: 0) .onChanged { scene.apply(.aim(at: scene.convertPoint(fromView: $0.location))) } .onEnded { _ in scene.apply(.primaryAction) }) // watchOS — Digital Crown + tap → the SAME intents SpriteView(scene: scene) .focusable() .digitalCrownRotation($crown) .onChange(of: crown) { _, new in scene.apply(.moveHorizontal(new - last)); last = new } .onTapGesture { scene.apply(.primaryAction) }