They can try to complete any remaining challenges or trials. These could include combat challenges against tougher enemies or environmental puzzles that were too difficult during the main story playthrough. Completing these can improve the player's skills and also unlock new achievements or trophies.
One can engage in side quests that often provide more in - depth backstories of the characters and the world. These side quests can also reward players with unique items or upgrades for their weapons and armor. For example, some side quests might involve helping a particular character in distress, which in turn gives the player a special ability or a powerful weapon enhancement. Additionally, players can also revisit areas to find any missed collectibles or to simply enjoy the beautifully crafted environments once again.
Players can explore the game world more thoroughly. There might be hidden areas that were not accessible during the main story, filled with secrets and additional loot.