The European Emperor's Infinite Apocalypse Survival Game

Lu Cha is snatched into a survival-game instance while making food deliveries. Thanks to his lucky streak, his beginner's gift package contains a spatial talent, and his space can grow. He must survive for at least 30 days in each instance. Clearing one earns him attribute points to allocate. There are zombie, flood, earthquake, monster, volcanic, supernatural, and other kinds of instances. What is the true purpose of the survival game?