In Puropu Defense Squad, players take on the role of sentient props tasked with defending their world from waves of invading humans. The core mechanics involve building and upgrading heroes while engaging in real-time combat, allowing for both strategic planning and fast-paced action.

The storyline of Puropu Defense Squad revolves around a whimsical universe where everyday objects come to life to protect their realm from human encroachment. Players must navigate various environments and challenges as they fight to reclaim their territory.

Puropu Defense Squad stands out with its innovative combination of third-person action and tower defense elements, offering an endlessly replayable co-op campaign that encourages teamwork and strategy among friends.