The First-Class Space is akin to a "single-player game," a solo performance where the host overcomes difficulties and seizes the world's influence.
The Second Class Space is a "multiplayer online game," where the host embodies the Main God, akin to a GM or a game developer, orchestrating a group performance.
The Third-Class Space is a combination of both, divided into perfect and imperfect situations, as has already been mentioned before and will not be repeated here.
Now, as a "GM and game developer," Li Xu has given himself an ordinary "game ID," which is an A-level qualification, pretending to be a future Transcendent, leading a fledgling team to clear a "game scenario."
Well, you could think of it in layman's terms.