Towers

The Class D Tower represents disposable personnel used by the Foundation for high-risk tasks. In SCP Tower Defense, this tower serves as a basic unit, offering low-cost defense with minimal damage output and range. While modest at first, future upgrades significantly enhance its effectiveness, making it a valuable asset as the game progresses. 

The Epsilon-11 Tower, also known as "Nine-Tailed Fox," represents the elite Mobile Task Force deployed by the Foundation for the most critical containment breaches. In SCP Tower Defense, this tower excels at precision and high damage, with a longer range and faster attack speed compared to basic units. Upgrades unlock advanced weaponry and tactical abilities, making it a powerful choice for countering stronger SCP threats. 

The Foundation Personnel Tower represents the skilled scientists, researchers, and guards working within the SCP Foundation. In SCP Tower Defense, this tower provides balanced support with moderate damage and range. While initially less specialized, upgrades enhance its capabilities, introducing unique tools and strategies to aid in containment and enemy control. 

The MazHatter Beta-7 Tower represents the elite hazmat response units of the SCP Foundation’s Beta-7 ("Maz Hatters") task force, specialized in handling anomalous biological and chemical threats. In SCP Tower Defense, this tower offers focused damage against enemies resistant or immune to standard attacks. While its base damage is modest, upgrades provide powerful containment tools and hazardous effect attacks, making it essential for dealing with bullet-immune or hard-to-stop enemies.