Cell Defense: TD is an Android tower defense game developed by DHGames Limited. In this game, players act as the immune system protecting the human body by commanding various cells to battle against mutated cells and viruses. The gameplay involves summoning cell warriors in real-time to defend against enemy attacks, whether from virus legions or other players.

Players can engage in 1v1 fair competition where strategic planning is key. With a wide range of strategic combinations available, players can craft powerful teams to defeat opponents. Additionally, the game offers a collectible aspect with hundreds of cell warriors to collect, enhance, and create different team combinations to utilize unique skill traits effectively. Completing daily quests is also a part of the game to earn rewards and improve the team's strength and progression.