Goals and challenges '' focuses solely on the experience of flying an aircraft, in contrast to other games with missions and goals. The core gameplay in a vehicle simulation is the physical and tactical challenge of driving a vehicle. Mastery of vehicle control is the element which encourages players to continue playing, even after the game's goals have been completed. Players learn to use appropriate speed and steering, and must avoid crashing by observing cues about how fast they are going. There are some vehicle simulations where the player is given no specific goal, and is simply able to explore and experience using the vehicle. In the absence of any competition, "some vehicle simulations
aren't games at all" But most vehicle simulations involve some form of competition or race, with a clear winner and loser. Some games add special challenges such as combat and
slaloms. Many types of driving games, including both military flight simulators and racing simulators, make use of careers and campaigns. Players must complete different tracks or missions, and collect victories and other achievements based on their performance.
Realism and physics The market for vehicle simulators is "divided between the purists and the casual players". A variety of vehicle simulators have been created to serve both markets. Purists demand total accuracy, whereas
casual players are less concerned with such details. This level of accuracy depends on how damage, physics, environment, weather, and controls are implemented. For example, accurate flight simulators will ensure that the vehicle responds slowly to their controls, while other games will treat the plane more like a car in order to simplify the game. In both driving games and flight simulators, players have come to expect a high degree of verisimilitude where vehicles are scaled to realistic sizes. These types of games usually utilize a highly accurate time scale, although several flight simulators allow players to fast forward through periods where there is nothing interesting happening. In the case of space or water vehicle simulations, the gameplay physics tend to follow those of flying and driving simulations. These games will add variety by having a variety of vehicles with different performance characteristics, such as sharper turning or faster speed. Many games make use of real life vehicles, including military vehicles or cars from major automobile manufacturers. In most games, the player can adjust performance of their vehicle by configuring or replacing parts of it, while some games like
SimplePlanes allow players to build entirely custom vehicles from a set of blocks and presets. These may sacrifice realism in favor of broader customization possibilities.
Non-driving roles Although vehicle simulations focus on driving a vehicle, many games involve non-driving roles. For more detailed racing simulations, the player may sometimes play the role of a mechanic who repairs or augments their vehicle. Some flight simulators involve various
air traffic controller roles, especially in
multiplayer mode. In games with a combat element, this might involve manning a separate combat station on a larger vehicle. Some games such as
Their Finest Hour allow players to alternate between piloting the vehicle or manning the waist or tail guns.
Megafortress allowed players to operate five separate stations for combat and managing the vehicle. Games that make use of combat have competition modes similar to
first-person shooters, where player must defeat human or
artificial intelligence opponents.
As part of other genres Many games implement a driving system. For example, it has been increasingly popular in first-person shooters to have combat vehicles. These are rarely designed with accuracy in mind, focusing more on their tactical experience. ==Sub-genres and vehicle types==