Protect Earth from Invaders with Sphere Defense

Sphere Defense: A Minimalist Tower Defense Gem Now Available

Defend the sphere (Earth!) from relentless enemy waves in Sphere Defense, the new tower defense game from developer Tomoki Fukushima. While the core gameplay remains true to the genre – strategic unit placement, resource collection, and escalating difficulty – Sphere Defense adds a unique twist with its minimalist aesthetic and vibrant neon visuals.

The game challenges players to strategically position towers and units to repel incoming attacks. Each successful defense earns resources used to upgrade your defenses, leading to ultimate victory. The difficulty ramps up with each level, rewarding skillful players with high scores for bragging rights – especially those who achieve perfect, no-hit runs.

Fukushima cites the classic tower defense game geoDefense by David Whatley as inspiration, stating, "This game was developed as a homage to 'geoDefense', a tower defense 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.

Sphere Defense is available now on the App Store and Google Play. Follow the official Twitter page for updates, and watch the embedded video above for a glimpse of the game's unique style.