Etrian Odyssey IV: Legends of the Titan is the sequel to the 2010 game Etrian Odyssey III: The Drowned City. In this installment, players play as an explorer who has recently traveled to the city of Tharsis, where the Outland Court of Tharsis has sponsored a challenge to reach the ancient tree of Yggdrasil, a tree that is visible throughout the land but has never been reached. Travel throughout the land as you try to discover what is hidden in the roots of this mysterious tree.
Etrian Odyssey IV: Legends of the Titan introduces air travel through the use of a skyship, which are highly customizable and upgradable flying ships that allow you to travel and battle in the air. In terms of combat, players battle with their party in turn based combat to defeat enemies. To progress through the game, players must find and navigate through multi-leveled labyrinths, where players can find materials that they can turn in for better items, weapons, and armor.