I tested the game with WinUAE 5.2.0 and am happy to share my configuration. I used an A1200 with Kickstart 3.1, OS 3.1, 8 MB Z2 Fast RAM, Cycle Exact settings for blitter & DMA/memory, without any other expansions like accelerator cards, but with access to my PC hard drives (setting: Add PC drives at startup).
We will definitely keep an eye on the game so we can test it again after an update and report back. We are really looking forward to the final version. :-)