Fortnite
Test for Open NAT with your port forwarding configuration with Fortnite
PC 
Playstation 4 
Xbox One 
Nintendo Switch
Xbox Series X
Playstation 5 Fortnite
Fortnite is a multiplayer video game developed by Epic Games. It first was released in 2017. It has seven separate game modes that are variations of the Battle Royal game mode. It is one of the most popular online games, with over a million daily users.