Orbox C puts players in control of an orbox, moving it between blocks to complete puzzle missions. Its setting gestures toward a much larger science-fiction conflict: in a distant future, giant objects called Necroids appear and threaten the world. That premise supplies atmosphere rather than a playable enemy roster; the store description explicitly says Necroids and Necrobots are not currently in the game.
The central design is deliberately compact: simple, responsive controls and level layouts that ask players to navigate the orbox through different blocks. Missions come in several types, and the level packs span difficulties and styles, including Easy, Normal, Hard, Speed, Filled, and Bonus. The description presents level design as a major focus, while its sci-fi backstory explains the orbox as an experimental weapon piloted from within. It is a puzzle-first experience, not a combat game built around the enemies in that lore.
Orbox C is listed as single-player, so its format is solitary problem-solving rather than a shared or competitive session. The store overview describes eight packs of thirty levels, with a total of 240 levels.