Who developed the 2015 video game Rhianna Pratchett worked on?
Rhianna Pratchett:  She has worked on titles such as "Tomb Raider" (2013) and its follow up, "Rise of the Tomb Raider" (2015), "Heavenly Sword", "Overlord", and "Mirror's Edge". Rise of the Tomb Raider: Rise of the Tomb Raider is an action-adventure video game developed by Crystal Dynamics and published by Square Enix.
Crystal Dynamics