Slashers are a special subgenre of horror that became incredibly popular in the 80s and 90s, causing a lot of remakes to pop up in the 2000s. Slashers tend to focus on a group of people who are stalked and typically killed one by one by a killer, usually in a mask and almost always with a knife or other blade that provides the "slasher" name. These movies often blend genres and have lighter moments, or mystery themes alongside the horror.
https://screenrant.com/slasher-movies-2000s-best-remakes-ranked/