Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
Magic Sudoku - ARkit - Solve sudoku puzzles like magic with the power of AR
Pixel Studio - The Pixel Art Is Always Fun
SudoKoi - Your next favorite pastime, like Sudoku
Pixel Art to CSS - Draw and animate pixel art, export the results to CSS
CodingEscape - The escape game for coders and non-coders