Fallen Aces has introduced a rest and relaxation area between missions, allowing players to enhance skills and experiment with weapons. New features include customizable player profiles, collectible comics throughout the city, and a new enemy type called Big Palooka at the end of Chapter 3. The Nightwave's Hideout serves as a narrative homage where players act as a detective uncovering the fate of pulp heroes, featuring fresh dialogue and content starting from Chapter 2. Further details about The Hideout Update can be found on Steam.