Musical artist CG5, best known for his fandom-based content that provides unique takes on indie horror games like Five Nights at Freddy's and Poppy Playtime, is working on gamified promotional content for one of his upcoming songs. There are still a lot of unknown details about how someone would engage with this, but it sounds a lot like an ARG with fans engaging with his promotional content instead of it operating like a general ad. Overall, though, it's something that the musician is excited about.