Fortress is a playable class in the video game and anime adaptation 'Sekaiju no Meikyuu' (also known as 'Etrian Odyssey'). Rather than an individual character with a unique identity, Fortress represents a class archetype specializing in defensive abilities. Members of the Fortress class are known for their resilience and ability to protect allies from harm, often serving as the frontline shield for their party. Their primary role is to absorb damage and ensure the safety of more vulnerable team members.