itch.io

It's fairly simple to get working. On the library page, near the bottom, there's a button to add a game. I'm sure you can figure the rest out yourself, but it'll open a drop down in which you would be wise to select the option to add a non-steam game and direct it to the game's executable. Be sure you hit the "Add Selected Programs" button before closing the window. Right click the newly added game, hit properties, compatibility, then force whatever proton version you feel like,

Have you even played either of those games? There is absolutely no similarity, and no, the sounds are not "stealed." Using sounds from something else is not stealing them. There is nothing wrong with using placeholder assets, especially for a free indie game demo made by a single person. Shame on you.

Next time, please consider not commenting something so incomprehensibly stupid as this. You sound like you're six years old.