itch.io

If you look up "The Most Mysterious Song on the Internet" you'll find it. It being played in the gas station is a reference to the "My House" Doom Mod.

The song that plays inside the gas station it's called "The most mysterious song on the internet" look after it in Youtube, because it has a very curious story behind.

Also, it plays in the gas station because of a reference from a very famous Doom custom map called "My House" that went viral this year, there are many video-documentaries in Youtube about this map, but I love the Power Pak video.