Standard Issue Games

Sphere TD

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.

Released: 20 January 2026
Developer: Standard Issue Games
Publisher: Standard Issue Games
Engine: Unity 6
Platforms: Android · PC (Microsoft Windows) · iOS
Genres: Role-playing (RPG) · Simulator · Strategy · Indie