HAMSTER Corporation
- Puzzle by Nikoli W Kakuro
- Puzzle by Nikoli W Hitori (Windows)
- Puzzle by Nikoli W Hitori
- Puzzle by Nikoli W Yajilin (Windows)
- Puzzle by Nikoli W Yajilin
- Puzzle by Nikoli W Numberlink (Windows)
- Puzzle by Nikoli W Numberlink
- Puzzle by Nikoli W Shikaku (Windows)
- Puzzle by Nikoli W Shikaku
- Puzzle by Nikoli W Masyu (Windows)
- Puzzle by Nikoli W Masyu
- Puzzle by Nikoli W Hashiwokakero (Windows)
- Puzzle by Nikoli W Hashiwokakero
- Puzzle by Nikoli W Heyawake
- Puzzle by Nikoli W Nurikabe (Windows)
- Puzzle by Nikoli W Nurikabe