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.

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

In Earth is Online, the main character is cold/calculative while the male lead is very strong and strategic.

In Kaleidoscope of Death, the main character is very adaptable and the male lead is a survivor.

While Earth is Online is a bit more on the comedic side, Kaleidoscope of Death is very raw with its characters and you can truly feel their despair in every world.

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 stories are about boys who grew up together, became rivals, but became friends in highschool.
Bad Buddy's main conflict is the fact that the MC and ML's familys fight.
Meanwhile, in I Told Sunset About you, the expectation that they have for themselves, as well as the expectations that others have for them stop them from acting upon their feelings.

These are both heartwarming stories about an adult, recently released from prison, taking care of a teenager who has recently lost his parents.

Both of these stories involve the death of an individual which lead to a teacher discovering both the good and bad secrets of their students. Both of these are mystery/suspense dramas where every single witness is twisting the truth and where their rich politician parents are directing the behind-the-scenes.
Both of these also have minimal romance.
Law School is a bit more mature and as its name suggests, law plays a big role in it. It focuses more on morality and understanding why characters do what they do.
Class of Lies is more dramatic and suspenseful, it's less about the laws and morality and more about who the real culprit is and how they've been playing everyone around them.

Both of these dramas are historical Korean dramas focusing on ML's that are secret royal inspectors. In both of these dramas, the FL ends up helping the ML.

These are both really sweet chinese movies/dramas that focus on two students from the same hometown falling for each other and attending the same college.

Both these dramas focus on how non-consensual sex tapes can ruin the lives of young people.
While The Leaked focuses on the consequences of having yourself filmed in a sex tape, Fuccbois focuses on the desperation and actions of victims who fall for sex traffickers.

Both of these are really dark/disturbing stories that revolve around youth, illegal sex trafficking, and how people can resort to extreme measures in order to get what they want.

Both of these romance lakorns focus on men who suffer from amnesia falling in love with women that they shouldn't be falling in love with.

Both of these are short dramas focused on the dark side of social media. They both explore how social media and the exploitation of nonconsensual sexual photos can lead to the ruining of someone's life.