Fortnite x Marvel has brought about a grand scale of changes to the Battle Royale island, and Chapter 5 Season 4: Absolute Doom has seen its fair share of Marvel heroes and villains grace Fortnite once more. One of Chapter 5 Season 4s landmarks, Castle Doom, features a plethora of easter eggs relating to the fates and teasers of certain Marvel characters, both seen and unseen in Fortnite.