Idle Defense Tycoon: Heroes TD combines tycoon management with tower defense gameplay. Players manage a weapon shop, crafting and selling powerful gear to heroes who defend the city against waves of monsters. The game features a robust economy system, allowing players to upgrade their production line and earn passive income while offline. This makes strategic management essential to enhance defenses and improve hero capabilities.

The game offers a diverse hero collection, each possessing unique skills and special abilities. Players must strategically position these heroes during battles against various foes like Slimes and Skeletons. The combination of crafting, hero management, and strategic defense creates an engaging experience that challenges players to optimize their resources and tactics to protect the tower.