The 3rd Birthday is a third-person role-playing shooter game, which takes place in 2013, a year after creatures known as the Twisted have appeared from beneath Manhattan and decimated the city.
This game is a continuation of the Parasite Eve video game series, based on the titular Japanese novel and a spin-off, with just a passing reference to previous titles. The Overdive ability is a key mechanic, which allows the player to possess pre-positioned human teammates and do harm to enemies.