2026 · Role-playing (RPG) · Simulator · Strategy · Indie · PC (Microsoft Windows) · Android · iOS
Sphere TD is an RPG tower defense game that combines strategic base defense with deep tower and projectile customization. Players build and upgrade towers, modify projectile behavior through a wide range of systems, and progress through handcrafted stages, endless mode, and a large world map. The game emphasizes experimentation, long-term progression, and replayability through its buildcraft, resource management, and progression systems.