Cage Sudoku is a logic-based puzzle app built around the rules of Killer Sudoku. Each puzzle starts with an empty grid and a set of cage totals. Your task is to fill in digits 1–9 without repeats, ensuring each cage adds up correctly.

Four difficulty levels, from introductory to advanced. No given digits—every value is deduced from cage logic. Minimalist interface designed for focus and ease of use. Supports dark mode for low-light environments. Fast, responsive interactions with no unnecessary animations. Cage Sudoku is designed for players who prefer a quiet, thoughtful puzzle experience.