In the Fallout 4 video game, grenades are a type of explosive weapon that can be thrown to damage enemies. To throw a grenade, the player character must first equip a grenade from their inventory. Once a grenade is equipped, the player character can throw it by pressing the grenade hotkey (default: G). The grenade will then be thrown in an arc, landing at the target location. The blast radius of a grenade is relatively small, so it is important to aim carefully in order to hit enemies.
Grenades can be a very effective weapon against both human and non-human enemies. They are especially useful in close quarters combat, where it can be difficult to hit enemies with other weapons. Grenades can also be used to clear out groups of enemies, or to take down heavily armored enemies.