Global University Entrance Examination

Both of these are BL of the "Unlimited Flow" (continuous horror games) Genre.
Both have very cold/calculating main characters and male leads.
Both are pretty slowburn.

Earth is Online's games are a bit less scary than Global University Entrances though.

Both of these are BL of the "Unlimited Flow" (continuous horror games) Genre.

The MC and ML of both stories are really similar. And, in both stories, the two have a backstory with one another.

Earth is Online focuses a bit more on the arcs and what exactly the towers are/do.

Global University focuses a bit more on the inner turmoil and character relationships.