Ultimate Periodic Spell System

Ryu Storm was just a young man who spent most of his time playing video games and creating content for his online fans until the day the world ended. He was surprisingly well prepared for the end, thanks to having a sense of being prepared drilled into him from a young age, but is still caught off guard like so many others when his world is forcible integrated into the Multiversal System, 423 years early, due to humanities depletion of the planets ability to survive. Can Ryu leverage his gaming skills into a viable survival strategy that can keep him alive long enough to figure out what he should do next? Or will he fall by the way side like so many of the rest of his worlds people?