The sinwave mechanics were pretty fun to control once I understood what was happening - this works well as a game basis! It definitely needs a little more to make it feel like it fits the theme though, even if it's just a bit of window dressing in the form of a story & some slight restyling. For example, I could see this repackaged as a game about controlling the growing scale of a galaxy, pulling planets into the right orbits by using the sinwave mechanics to adjust their positions. There's plenty of ways you could take this concept!