Marathon's second season will begin with an Open Play Week from June 2 to June 9, allowing players to experience the full game for free on Steam, PlayStation 5, and Xbox Series X|S. Progress made during this period can be carried over into Season 2. New features include an evolving storyline with new areas such as the Observation science deck, psychological elements like "Psychosis" and "hallucinations," and two new weapons: the D54 Battle Pistol and the KKV SMG. The seasonal reset aims to provide players with a fresh start and a sense of discovery.