APSudoku

APSudoku is an implementation of the classic puzzle game Sudoku, designed to interface with the Archipelago Randomizer program to earn free hints for ongoing randomizer games via completing Sudoku puzzles.

Puzzle solving itself is single-player, though some features can interact with other players connected to the same Archipelago room, such as the "Death Link" feature, which can clear your grid when another player dies- or kill another player in whatever game they are playing when you submit an incorrect puzzle solution.