Nathan Grigg is an American composer who works closely with Monolith Productions and Sierra Entertainment. His works include the first-person shooter series F.E.A.R., as well as Condemned: Criminal Origins, the No One Lives Forever series and Alien vs. Predator 2. He has also composed music for Pandora's Box, The Matrix Online, Contract J.A.C.K. and Tron 2.0. His most recent work was on F.E.A.R. 2: Project Origin.