I took a look at the first link, and I don't mean to be rude, but what you're expecting of users is downright hostile. Downloading a game engine and then runtimes to manually compile your game isn't going to snag a lot of casual interest.

From your description:

You need to compile this project, and to compile this project you first need to have the godot engine with C#/.NET support which the download link is underneath this line, second you put the Bowling Mega Mix folder on your local machine, third you need to open that same folder in the engine, fourth compile the project either using the play button or something else.

To put new files in this repository you need github desktop, Here is a link to ubuntu based linux distro version of github desktop: https://gist.github.com/berkorbay/6feda478a00b0432d13f1fc0a50467f1 and whatever you do, do not use gitkraken as your github desktop replacement or linux version, it does not work.

Before you get the engine or compiling the project, you are going to need the .net sdk and runtimes and you may want to install an older version because sometimes the latest version does not work and here is a link to the directions on how you install it on linux: https://learn.microsoft.com/en-us/dotnet/core/install/linux?WT.mc_id=dotnet-35129-website, to install an older version you change the version number to a lower number in the terminal.

To use mods you use the version 2 or later folder, you drag the mod folder in that very same folder and the mod folder must be called Bowling Mega Mix Mod and .tscn file must be called ModBowlingBall.tscn and lua scripts must be called ModBowlingBall.lua and ScoreLayer.lua

You posted as though you'd like feedback from people spending five to 10 minutes with your game, but you're turning this into the better part of an evening by not having something one and done. That's not how you draw testers.

It's cool that you're being so prolific, but please don't ask people to install software other than yours for your software to work. If a .NET download link needs to be thrown into the .msi, so be it, but this should not be a multistep process (for *NIX, provide a script).