Need for Speed Unbound is a racing game set in a fictional city called Lakeshore City, which is based on Chicago. It features an open world environment and gameplay similar to that of previous entries in the series, being mainly focused around street racing.[7][8] The "heat system" from Need for Speed Heat returns in Unbound, where the player attempts to gain notoriety among the police.[5] Additionally, the game features various forms of customization such as installing various body kits, adding a splitter, and even completely removing the front or rear bumpers.[9]