Apocalypse:His System Multiplies All Supplies He Gets by 10,000×,Making Him the Overlord of the Sea!

What the story is about

After being transported into a deadly ocean survival game, Lynn starts with a tiny raft and a poor supply crate—but soon unlocks a system that can multiply the resources he gathers or crafts. With a powerful transmutation table that lets him record and recreate items, he builds up his gear, raft, and strength while facing dangerous sea creatures and other survivors.