The Life & Death expansion has revitalized one of the most overlooked occults in The Sims 4, introducing depth and functionality to the afterlife. Ghosts have been given their own skill tree, which allows them to progress through five tiers of Ghost Mastery and earn experience points to unlock new abilities. This progression allows players to customize their Ghost Sims supernatural strengths, adding a layer of strategy and immersion for those wanting to explore life on the other side.