SudoKoi - Your next favorite pastime, like Sudoku
Word Square - Sudoku, but with letters and words.
Pako - Car Chase Simulator - Arcade game about high speed police chases
UsDoku - Play real-time multiplayer Sudoku.
CodingEscape - The escape game for coders and non-coders
Pro:Sudoku - Play Sudoku with Apple Pencil on iPad