The current version of the game only includes Chapter 1 (v.1.6.1.). I'm not sure if these download links work, but hopefully, they do.
https://mega.nz/file/hW9jlaTD#MFWBUksp6-gW3u3vWRo9YaNAf9m01Efrmg7tVPNPvec (pc download)
https://mega.nz/file/8e9lVRLI#4k8gcS9xVhZ7fM32ciVpvMWJUfCtT-zBKFp0dizcod4 (mac download)
https://gamcore.com/games/vis
Thank you!