Earth Threatened: Play Sphere Defense to Save the Planet

Outsmart relentless enemy waves and defend the sphere in Sphere Defense, the captivating new tower defense game from developer Tomoki Fukushima! The game's core gameplay revolves around strategic unit placement and resource management to survive increasingly difficult levels.

While adhering to classic tower defense mechanics – strategically positioning units to repel attacks – Sphere Defense distinguishes itself with its minimalist aesthetic and vibrant neon visuals. Each successful defense earns you resources to upgrade your units, pushing you closer to victory. The challenge intensifies with each level, rewarding skillful players with high scores for ultimate bragging rights. Perfect defense runs, where you withstand attacks without taking damage, are particularly rewarding.

Inspired by the classic geoDefense, Sphere Defense captures the essence of simple yet engaging gameplay. Fukushima states, "This game was developed as a homage to 'geoDefense', a tower defence game created over 10 years ago by David Whatley. When I played 'geoDefense', I was deeply impressed by how such a simple game could be so fun and beautiful."

Looking for more tower defense action? Check out our list of the best Android tower defense games!

Download Sphere Defense now on the App Store and Google Play. Join the community on Twitter for updates, or watch the embedded video above for a sneak peek at the game's unique style.