FPSnake, exported from Godot v4.2.1 to Windows/Linux/Mac.
To run it, just download the appropriate executable file, and have fun!
Note 1: I still don't own a Mac (nor do I intend to), so I couldn't test that version. I've heard it can be really picky, especially because I'm not a certified Apple developer. If you encounter these problems, sorry; it might be better to just run the source code itself.
Note 2: If you have an older machine which doesn't support Vulkan (shoutout to my old Thinkpad with an i5-5300U and integrated HD 5500, which I absolutely love), you might have to run the executable with the command --rendering-driver opengl3. This makes the lights a bit worse, but it doesn't cause any issue.