https://www.gog.com/game/summer_memories_deluxe_edition_unrated
basically, the game is censored but the uncensored patch comes as a free DLC so one can go around Paypal prudors. the patch is on GoG aswell and not on the website of the game makers like it use to be for steam
source is 4chan: https://arch.b4k.co/v/thread/580218447/
But most free games are literal cancer.
You've got garbage like Candy Crush and all the other mobile games that aren't worth naming, Apex Legends, Halo Infinite MP, Rogue Company, Warface and more I can't think of.
What makes no sense to me is when they make porn games that require both hands. Like, they either missed the point, or they are actively being evil on purpose.
There's literally no other reason to be playing them.