Anyone want to use a game engine inside of your games made in a game engine?

Hey there, so I’m developing a game engine that’s basically a console game, you can make an entire 2d shooter game (only limitation is that you’ll have characters instead of pixels). Im wondering if people would actually use this as maybe a way to have a mini game during a loading screen, or really anything, because I would like to know if it’s worth publishing (when it’s finished, as of now I rewrote all the graphics code to run much faster so now it’s 650 FPS max)

And yes this would be a plug-in