Rhianna Pratchett is a games writer. Pratchett has been working with Codemasters, Crystal Dynamics, Eidos Montreal and Grzegorz Slazinski. Pratchett started in 2007 as the writer of Heavenly Sword. After that, Rhianna Pratchett took part as the writer of Mirror's Edge. Afterwards, Rhianna Pratchett worked on Overlord II developed by Triumph Studios in 2009. Most lately, Rhianna Pratchett worked on Rise of the Tomb Raider: 20 Year Celebration.