"Sin" may refer to:
- Manga.SIN, a post-apocalyptic OEL Manga by Drake Tsui.
- VideoGame.SiN, a videogame series developed by Ritual Entertainment and published by Activision.
- SiN (1998), the first game of the series and its Expansion Pack Wages of Sin.
You may also have been thinking of the Seven Deadly Sins.
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