Verifying patches means owning the games, which while I would love to own every lewd Steam game, is not practical for me at the moment.
If you have an interest in helping me out with game access, get in touch through the contact page!
The patch install involves running a .exe. This was retrieved from the developer, and the Mega link I'm providing is the same they do on The Last Sovereign website. Regardless, take extra caution as I have not verified this, and I accept even less responibility than usual if there is any issue with this patcher!
The game install folder has a file named "patch" in it.
Steam store: https://store.steampowered.com/app/793450