Dr. Cyril Splutterworth is a niche publisher focused on casual puzzle and educational titles, with releases such as Let's Learn Japanese! Kanji Sudoku, Let's Learn Shogi, and a variety of Jigsaw Puzzle World editions. Their catalogue of around 52 games is aimed at players looking for low-key brain teasers and learning aids rather than action-driven experiences. The label occupies a quiet but consistent space in the casual PC games market.