Roy Nathan de Groot - is a video game artist and programmer. Roy Nathan de Groot began his career in 2011 and has worked for companies such as Croteam, Vlambeer and Devolver Digital. Roy Nathan de Groot's first game was Serious Sam: The Random Encounter which was released 13 years ago. Best Game Roy Nathan de Groot contributed to was Serious Sam: The Random Encounter. Roy Nathan de Groot's latest work is Serious Sam: The Random Encounter which was released 13 years ago.