Uncharted 2: Among Thieves is a 2009 action-adventure game developed by Naughty Dog and published by Sony Computer Entertainment for the PlayStation 3. It is the second game in the Uncharted series. Set two years after Uncharted: Drake’s Fortune (2007), the story follows Nathan Drake, Chloe Frazer and Elena Fisher as they search for the Cintamani Stone and Shambhala while battling a militia led by war criminal Zoran Lazarević.

Development for Uncharted 2: Among Thieves began immediately following the success of Uncharted: Drake’s Fortune. The development team drew inspiration from explorer Marco Polo and his expeditions through archipelagos and eastern Asia. Naughty Dog developed an updated proprietary engine for Uncharted 2: Among Thieves, which runs exclusively on the Naughty Engine 2.0 system. These improvements enabled extensive motion capture, greater in-game cinematic sequences, and inclusion of an online multiplayer component, a first for the franchise.