
Explore the grid, gain new abilities and place the right digits in a huge sudoku-meets-metroidvania map.

Here is an excerpt from Sudokuvania: Digits of Despair's description on the game's official website:
This is a labor of love combining sudoku with my favorite video game genre - Metroidvanias. MVs are known for featuring exploration, gaining new abilities, and difficult boss fights, and I noticed the similarity to grid-based puzzles as soon as I started setting them. So, I present Sudokuvania: Digits of Despair.
Not just a big puzzle, Sudokuvania is a puzzle hunt in and of itself. As you clear the 40x50 map of dynamic fog, you will uncover new clues and new rules. Some cells' contents can only be found by solving linked Boss Puzzles. There is even a bit of a story, although I wouldn't call it compelling by any means. All in all, Sudokuvania is over 20 puzzles in one!
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Lift the fog of war and uncover new sudoku variant rules in a sprawling grid-based map.
Navigate an extraterrestrial land of sudoku variants to unlock further rules and abilities.
Pick up variant tools and fight self-contained bosses to explore the connected grids of planet Sudoku-45.
Discover the rules of each glyph in this instructionless puzzle challenge with serpentine tunnels.
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