We do not have a download file for the latest version (5.6.6), but you can try downloading it from the developer's site
Download version 1.5 from the developer's website
Version: 1.5 (x86)
Date update: Oct 19, 2020
File name: legacy-witch-island_s1_l1_gF8185T1L1_d2463089654.exe
Size: 232 KB