Are you ready to defend your castle? Backpack Castle Heroes is a casual game that delivers the fun of fight and strategy in a tower defense (TD) experience. Your castle wall is your backpack — place your hero units and weapons into the grid to protect your fortress, survive endless enemy waves, and enjoy the thrill of a truly strategic defense game! Space is limited, and every item takes up a different number of slots. Packing your backpack right is what wins the wave. Hold off the incoming waves and keep the fight going. With auto battles, you'll defeat enemies and gain EXP—then choose from 3 random upgrades each time. Your choices shape every run, letting you experience a fresh roguelike, random-powered playstyle again and again! Merge your hero and gear to power up even further. Clear stages to earn resources and upgrade your stats continuously. Collect cards to complete your build, strengthen your strategy, and survive tougher and tougher waves! Simple controls ...