Driver 3 focuses on a mixture of open-world gameplay conducted through a third-person perspective, with it possible to change to different camera angles at any time. The game consists of primarily single-player modes of gameplay - "Undercover", the game's story mode; "Take A Ride", the game's free-roam mode, which allows players to explore one of the three cities at their own pace; and "Driving Games", a challenge mode consisting of three types of car-based games for players to try out, such as pursuing a fleeing criminal. As with previous installments, gameplay mostly focuses on driving around one of three settings, consisting of partial but faithful recreations of real-life cities, using a variety of vehicles based on real-life models, ranging from sedans and sportcars, to vans, trucks. Vehicles can be damaged over time, though players may freely leave their vehicle and switch to another within the current game world setting they are in at any time; the exception is vehicles that are mission critical to the game's story mode, as losing these constitutes automatic failure. A notoriety system keeps track of the player's actions - any unlawful action will raise this bar, with police pursuing the player if spotted by any, and the response to stopping them changing depending on the level of notoriety they have.
Driver 3 introduces new gameplay mechanics to existing ones including motorbikes and speedboats, swimming, a health bar, and gun combat. Alongside being arrested by the cops or failing objectives in story mode, players can also fail if they run out of health without finding first aid kits to recover it. Combat focuses on the use of guns, based on real-life models and featuring a mixture of pistols, shotguns, assault rifles and sub-machine guns, and grenade launchers, to take down enemies; all weapons have a limit on ammo except for the lead character's personal weapon, but more can be found from dealing with enemies, or around the game world setting being played in during Take A Ride.
In Undercover Mode, players conduct a series of missions in which they must complete objectives, dealing with tasks such as escaping pursuers, reaching locations, and taking down culprits. At times, the player must complete objectives within a specific condition, such as a time-limit, with failure resulting in the player having to restart the mission. In Take A Ride, players can freely explore either Miami, Nice or Istanbul, searching for secrets, which consist of special cars and a group of hostile NPCs based upon the character of Tommy Vercetti from Grand Theft Auto: Vice City. If the player completes a mission of the story or leaves Take A Ride, they can freely choose to edit a replay footage from their game with different camera angles and film effects (i.e. slow-motion). The amount of footage they can edit is pre-determined and restricted in size.
