MissKaylee

- the main leads meet in a game
- the focus is on their romance

This is a movie version, but there is also a drama series called "Love 020" which is longer. I personally prefer the film because of the two main leads. The movie can be found here:
https://www.youtube.com/watch?v=VLBqhQ2_rIE&list=PLzHjyNBiCpSEe1M0QhCzo-kIkENOngOkO&index=1&t=56s

- there is a romance in the game where they meet
(However, there is also romance outside the game)
- the focus is on the romance between the female lead and the male lead (mostly outside game)
- the male lead in Love 020 makes video games (much like her crush in Love & the Emperor)

In Love 020, more of the story takes place in present time, but it has the same sweetness between the characters. This is the drama series and there is also a movie version. The series can be found on viki.com: https://www.viki.com/tv/36373c-love-o2o

- an emperor falls for the female lead
- the female lead helps the emperor
- a short drama series
- it has a happy ending

You can watch "Emperor or Boss" on Facebook - SubbingPaws
You can watch "Splash Splash LOVE" on Viki Rakuten; https://www.viki.com/tv/29455c-splash-splash-love

- an emperor falls for the female lead
- the male lead admires the female lead
- the ending is happy

You can watch "Love & the Emperor" with English subs here:
https://productiveprocrastination.site/category/love-and-the-emperor/

- a female lead who travels to a place with an emperor
- an emperor who admires the female lead
- a male lead who falls in love with the female lead
- a story where there is a happy ending

You can watch "Love & the Emperor" with English subs here:
https://productiveprocrastination.site/category/love-and-the-emperor/

Both "Love 020" and "Love Scenery" (2021) has a male lead and a female lead who play video games. He also knows her before meeting her online, even if he doesn't know. The actors are quite good and you see many great moments when they play games. They of course meet and romance/problems ensue.