My Redemption Code for National Survival Can Be Used Unlimitedly

(National survival, apocalypse, talent, development flow, stocking up on supplies, decisive killing, not the Holy Mother, and building a base.) Everyone travels to the post-apocalyptic wasteland world. This is a world ruled by zombies, where everyone plays a survival game. At the beginning, everyone only has a dilapidated shelter. Killing zombies in this world will randomly drop redemption codes of different levels. The redemption codes can be randomly redeemed for weapons, food, daily necessities, talent scrolls and other items. Using redemption codes is the fastest way for people to obtain supplies, talents, and other items. Just when everyone is still worrying about how to get more redemption codes. However, Shusheng Ding awakened the gift of free whoring. Other people's redemption codes can only be redeemed once, but his can be redeemed infinitely...