Eroica transports players to a richly detailed fantasy realm where they command a roster of over sixty distinct heroes through turn-based combat encounters against formidable enemies and towering bosses. Drawing from classic Japanese RPG traditions, the game blends 2D and 3D visual styles while offering an expansive campaign filled with PvE missions that reward progression through loot and resource management. As players advance, they accumulate currency and materials to strengthen their party through equipment upgrades, ability unlocks, and weapon acquisitions, gradually building toward mastery of this sprawling adventure.