AI Love You and Are You Human Too both have the girl falling for a “guy” who is actually artificial intelligence and the guy has a real person counterpart.

Both Kleun Cheewit and Jon Kwa Ja Dai Ruk Gun have the same male (Mark) and female lead (Yaya)!Can’t wait for another MarkYaya lakorn!!

One Smile is Very Alluring is literally the movie version of Love O2O. Actually kind of liked the movie version slightly better, but both are still really good :)

One Smile is Very Alluring is the movie version of Love O2O (and I actually liked the movie version a little better). Both dramas are about gaming and both involve the plot of a guy that is amazing at games falling in love with a girl that's also really good at games. Both also have a kind of cold, aloof, and popular male lead who always protects the female lead. Highly recommend watching the other if you liked one of the two :)

These are similar in the way that the female leads are vengeful and there's a "competition/game" between the male and female lead.