Oil Rush is a tower defense real-time strategy game developed by Unigine Corp using their Unigine engine technology.[2] Set in a flooded, post-apocalyptic world, the game consists of players fighting over control of the world's last remaining oil reserves.[3] The game was released as a digital download for Microsoft Windows, Linux and Mac OS X.[4]

This theme has been viewed as controversial by some, especially as Oil Rush was originally intended to be released only a little more than a year after the much publicized Deepwater Horizon oil spill.[5] The game itself actually delivers an environmental warning message, with Unigine's CEO Denis Shergin commenting that "Fuel devouring armies that fight over the last drops of oil and pollute already trashed world is nothing but doublethink. That is a warning environmental message we'd like to deliver in a single-player campaign."[6]