What are the best exploration based games on PS4?

The gunplay plays so well it almost feels like a pure FPS. You can shoot from the hip, aim down the sights/scope, or even just run and gun. However, what makes Fallout 4 stand out is VATS (Vault-Tec Assisted Targeting System). When you activate VATS, the time slows down to a crawl, allowing you to mark body parts of enemies. When you execute it your character will automatically shoot the marked body parts. This is very useful for getting out of tight spots, allowing you to instantly clear groups of enemies or kill a really tough enemy charging at you. It also has the benefit of making you feel like an expert gunman, even if your aim isn't that great.