I am in the same boat as you. Did you ever get it running?
Bought game, downloaded itch, when installing it will say
"while extracting (NewLife Download 0.1.3/WindowsNoEditor/NewLifeDownload/Content/Paks/NewLifeDownload-WindowsNoEditor.pak): dmc_unrar_extract_file_with_callback: error 19: File CRC-32 checksum mismatch"
