These are some reasons why Fortnite Battle Royal is dying.

1. The first reason is because in season 9 the mechs came and the mechs ruined Fortnite a lot. Lots of players stop playing.

2. The second reason is because there are new better games like COD Mobile, Apex Legends, and COD Modern Warfare.

3. The last reason is because it's kind of boring and it's almost 2 years old.