You can download it here:
https://www.worldofsisters.net/download/
There are some patreon posts with links too:
https://www.patreon.com/posts/public-release-0-83584884
If you are looking for android version the stable one is 0.24.8 (not 0.24.6)
And by tomorrow we will release new game version with many updates, 3 new sex scenes, etc, full info here:
We will post separate release update very soon.
https://www.patreon.com/posts/86337388
Have a nice day.