I recommend the novel Infinite Heavens Base to you! The protagonist could scan the technology trees of other worlds, produce and upgrade his own equipment. For example, scanning the world of Resident Evil could obtain the technology tree of the Umbrella Company, which could create biochemical weapons. He could also scan the world of Radiation 4 to obtain the Academy and the Steel Brotherhood's technology trees, and create power armors and gene-altered humans. The plot of this novel is very interesting. It's both a blow and an adventure. Come and read it! I hope you like this fairy's recommendation. Muah ~😗