Not valid zip file or something Is wwhat I get told when trying to install it
Viewing post in MonMusu Paradise (Harem Simulation Monster Girls) comments
Hello, you need winrar or 7zip to extract it first.
Javalin197 has confirmed it in this post https://siluman.itch.io/monmusu-paradise/devlog/623781/public-alpha-043-release-...
Thank you for interested in our game.