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Sim racing is the collective term for that attempt to accurately simulate auto racing, complete with real-world variables such as fuel usage, damage, tire wear and grip, and suspension settings. To be competitive in sim racing, a driver must understand all aspects of car handling that make real-world racing so difficult, such as threshold braking, how to maintain control of a car as the tires lose traction, and how properly to enter and exit a turn without sacrificing speed. It is this level of difficulty that distinguishes sim racing from arcade racing-style driving games where real-world variables are taken out of the equation and the principal objective is to create a sense of speed as opposed to a sense of realism like the Need for Speed series.
Due to the complexity and demands of mimicking real-life driving, racing sims require faster computers to run effectively, as well as a steering wheel and pedals for the throttle and brakes for the immersion. While using a gamepad or even a Computer mouse and keyboard, may suffice for most arcade-style driving games on home systems, it would not provide the same level of immersion and realism as using a racing wheel and pedals. In recent years, many sim racing experiences have been developed for consoles, such as the PlayStation and Xbox. While these games can be played with a controller, it is recommended that players invest in a racing wheel and pedals. With the development of online racing, the ability to drive against human opponents and Game AI offline is the closest many would come to driving cars on a real track. Even those who race in real-world competition use simulations for practice or for entertainment. With continued development of the physics engine software that forms the basis of these sims, as well as improved hardware (providing tactile feedback), the experience has become more realistic.
The sim racing gameplay style has been applied in several video games, such as iRacing, Assetto Corsa and Assetto Corsa Competizione, Gran Turismo, Forza, and more.
Since the mid-1980s, it became a trend for arcade racing games to use hydraulic motion simulator . The trend was sparked by Sega's "taikan" games, with "taikan" meaning "body sensation" in Japanese. The "taikan" trend began when Yu Suzuki's team at Sega (later known as Sega AM2) developed Hang-On (1985), a racing video game where the player sits on and moves a motorbike replica to control the in-game actions. Hang-On was a popular Grand Prix style rear-view motorbike racer, was considered the first full-body-experience video game, and was regarded as the first motorbike simulator for its realism at the time, in both the handling of the player's motorbike and the AI of the computer-controlled motorcyclists. It used force feedback technology and was also one of the first to use 16-bit graphics and Sega's "Super Scaler" technology that allowed pseudo-3D sprite-scaling at high . Suzuki's team at Sega followed it with hydraulic motion simulator cabinets for later racing games, such as Out Run in 1986.
In 1986, Konami released WEC Le Mans, an early car driving simulator based on the 24 Hours of Le Mans. It attempted to realistically simulate car driving, with the car jumping up and down, turning back and forth, and spinning up to 180 degrees, with an emphasis on acceleration, braking, and gear shifting, along with the need for counter-steering to avoid spin-outs. It also featured a day-night cycle, accurately simulated courses approved by the Automobile Club de l'Ouest, and force feedback to simulate road vibration in the form of a vibrating steering wheel that reacts to the driver's acceleration and off-road bumps. The first racing game with simulation pretensions on a home system is believed to have been Chequered Flag, released by Psion on the 8-bit ZX Spectrum in 1983. REVS, followed in 1986. REVS was a Formula Three sim that delivered a semi-realistic driving experience by Geoff Crammond that ran on the Commodore 64 and BBC Micro. REVS had a big fan base in England, but not so much in the United States.
3D polygon graphics appeared in arcade racing simulators with Namco's Winning Run (1988) and Atari's Hard Drivin' (1989), the latter also becoming a staple on home computers, where it was one of the most widely played simulators up to that point. During the late 1980s to early 1990s, arcade racing games such as Out Run and Virtua Racing (1992) had increasingly elaborate, hydraulic motion simulator arcade cabinets, with arcade racers such as Virtua Racing and Daytona USA (1993) increasingly focused on simulating the speed and thrills of racing. At the same time, arcade racing games gradually moved away from the more difficult simulation style of Pole Position. By the early 1990s, arcade racing games had less emphasis on realistic handling or physics, and more emphasis on fast-paced action, speed and thrills.
In 1991, Namco released the arcade game Mitsubishi Driving Simulator, co-developed with Mitsubishi. It was a serious educational street driving simulator that used 3D polygon technology and a sit-down arcade cabinet to simulate realistic driving, including basics such as ensuring the car is in neutral or parking position, starting the engine, placing the car into gear, releasing the hand-brake, and then driving. The player can choose from three routes while following instructions, avoiding collisions with other vehicles or pedestrians, and waiting at traffic lights; the brakes are accurately simulated, with the car creeping forward after taking the foot off the brake until the hand-brake is applied. Leisure Line magazine considered it the "hit of the show" upon its debut at the 1991 JAMMA show. It was designed for use by Japanese driving schools, with a very expensive cost of AU$150,000 or per unit.
The next major milestone was the 1992 release of Formula One Grand Prix by MicroProse, also developed by Geoff Crammond. This moved the genre along significantly. Multiplayer was made possible by allowing different drivers to take turns, and racers could also hook up their machines for racing via a null modem cable. This only allowed two drivers to race. Leagues emerged where drivers would submit records of their single player races to compare with other drivers. LFRS (Little Formula Racing Series) included 22 two teams consisting of drivers from around the world racing various classes of sim racing in open and restricted setups. Drivers were required to download event specific setup files for each class, to monitor frame rates and apply a checksum to prevent tampering. Drivers saved their race and uploaded to the LFRS server where race results determined overall positions. This is the first sim in which drafting was possible.
Papyrus followed up Indy 500 with IndyCar Racing in 1993 and F1GP was surpassed in all areas. Papyrus later released more tracks and a final expansion included the Indianapolis track plus a paintkit. Now drivers could easily customize their cars. IndyCar Racing sold around 300,000 copies. The first variant of Papyrus' NASCAR Racing series was launched in 1994. In SVGA (640×480) it pushed the PCs of the time to the limit. Suddenly a resolution of 320×200 seemed a poor option and NASCAR Racing was the race sim of choice for anyone with a capable PC, particularly in North America. It was the first sim where cars no longer looked like boxes. It keyed in on sophisticated physics modeling. NASCAR Racing sold over one million units. Moreover, the first real online racing started with NASCAR Racing using the "Hawaii" dial-in servers and it was not uncommon for these early sim racers to have $300 to $1500 phone bills. Online racing had seen its first true realization, and to many, this was the dawn of "real" sim racing.
1995 saw the release of IndyCar Racing II, updating the first version with the new NASCAR graphics engine. A year later, MicroProse released the successor to F1GP, Grand Prix 2, to much anticipation. GP2 became successful not just because of its detailed and thorough simulation of the 1994 Formula 1 season, but also because it was customizable; this was achievable by way of the online community. Players could change everything about the game: drivers, teams, graphics, physics, car shapes, and eventually even the racetracks. Offline leagues reached their peak with GP2 in 1998.
In 1996, NASCAR Racing 2 was released, further improving the original, and the number of sim racers exploded. The TEN multiplayer hosting service was introduced and went live in November 1997 with the backing of NASCAR and the online sim racing community grew. In 1997, Gran Turismo was released for the PlayStation. It was considered the most realistic racing simulation for consoles at the time, featuring a wealth of meticulous tuning options and an open-ended Be-a-pro mode where players had to undertake to acquire driving licenses, earn their way into races and choose their own career path. The Greatest Games of All Time: Gran Turismo, GameSpot It introduced the racing simulation genre to , becoming the basis for all modern racing simulations on video game consoles.'' featuring a Mitsubishi FTO. ]]
After years of development, MicroProse released Grand Prix 3, which used a more modern graphics engine and featured the same customizable structure of Grand Prix 2. It was not as well received as its predecessor due to a lack of full online multiplayer and the fact it was based on the same, outdated graphics engine. However, because of the two games' graphical and physical similarities, the game was popular with modders who were able to port tracks and cars directly into Grand Prix 3.
Another milestone in sim racing came in 1998 with the release of Papyrus’ Grand Prix Legends, which was based on the 1967 Formula One season. Despite the game's steep learning curve, which made gameplay difficult for casual players, it was hailed as outstanding in all areas, especially in its physics and sound design. It was, however, a commercial failure, sometimes selling only as much as a thousand copies in select markets.Walker, Mark H. (2003). 155622950X, Wordware Publishing. 155622950X For many players, their first real experience of sim racing was through Grand Prix Legends or one of its many derivatives, such as NASCAR Racing 2003. To this day, modding teams have continued to work on the game, further improving on the game's physics and create third-party expansions for the following seasons, such as the 1969 Formula One season.
Wired magazine wrote an in-depth article about racing sims called 'Hard Drive' in their February 1997 issue. In 1997, TORCS was released. Uniquely for racing sims, it was open source, making it even easier for modding teams to add new features and even create whole new games, such as the TORCS-based Speed Dreams. Sega AM2's 1999 arcade game F355 Challenge, later ported to the Dreamcast in 2000, was considered the most accurate simulation of the Ferrari F355 possible up until that time; its focus on realism was considered unusual for an arcade game at the time.
American independent developer Image Space Incorporated produced their own sim Sports Car GT in 1999, and later the officially-licensed F1 series starting in 2000, all published by Electronic Arts. Compared to the Papyrus sims at the time, the physics were easily modifiable, and many communities were been founded with the sole purpose of improving and updating MotorEngine-based games. One such community, SimBin, later created their own company and have since released several games themselves, including some that were officially licensed by the FIA GT Championship and World Touring Car Championship, as well as the freemium racing simulator RaceRoom many years later in 2013.
One of the earliest examples was Live for Speed, created by ex-Lionhead Studios developers Scawen Roberts, Eric Bailey, and Victor van Vlaardingen in 2003, which came with a brush deflection tire model. It was also one of the earliest games in the genre to feature online multiplayer. Its combination of online features, tire model, and user experience accessibility made Live for Speed a popular game at release. Over the course of over 20 years of development, numerous updates to the game's physics engine have since been introduced, including a deeper simulation of tire wear, dynamic dirt, flat spots, hot spots and Sidewall deformation, Car suspension, aerodynamics, drivetrain, several gearbox types, clutch overheating, car body damage, and engine damage.
Rallying fans received the first true rally simulation in 2004 with Richard Burns Rally. 2001 FIA World Rally Champion and namesake Richard Burns was involved in the development, giving feedback on handling dynamics in particular. It initially received mixed reviews upon release, but the game gradually gained recognition for its complex physics engine, driving dynamics, and realistic portrayals of real-life courses, and is now generally considered the most realistic rally simulation in the genre. Much like most sims from the graphic accelerator and modern era, it is highly modifiable and has many third-party mods that introduce anything from new cars to new physics.
rFactor was notable for its initial download-only distribution model, and was originally released in 2005 by Image Space Incorporated with fictional cars and tracks. rFactor
David Kaemmer, co-founder of the now-defunct Papyrus Design Group, released iRacing in 2008, a multiplayer-oriented simulator run on a subscription model. iRacing was a project four years in the making; Kaemmer had worked on the game's NR2003-based source code since 2004. The game retained the multi-body physics system of NR2003, as well as some of the track presentation and multi-user packet code, but everything else had been changed, or was made completely new, like the tire model and graphics engine. iRacing is one of the longest supported racing games in the genre, and the game continually receives regular updates between 12-week competition seasons. Continuous improvements to the game's driving model have earned it recognition as the most realistic racing simulation on the market from both critics and players. In 2021, iRacing introduced a revamped damage model, implementing soft body physics and affecting vehicle behavior when players crash on track. In 2024, iRacing introduced the "Tempest" dynamic weather system.
Kunos Simulazioni began development on Assetto Corsa in 2010, a sim built on experience gained from their previous games netKar Pro and Ferrari Virtual Academy but with an entirely new engine. The game was officially released in December 2014. The new engine was designed to provide extensive and detailed tools for modding, allowing players to create highly detailed content with minimal effort. The engine's flexible modding capabilities have since kept the game widely played for years beyond its lifespan.
Slightly Mad Studios, developers of the and installments of Need for Speed games, launched Project CARS in 2015. It was unique in that it was a crowdfunded effort, with CARS standing for "Community Assisted Racing Simulator". The game used an improved version of the Madness engine from the Need for Speed: Shift titles. By taking advantage of newer hardware, Project CARS introduced a dynamic tire model that simulated the tire's carcass, tire tread, contact patch, and heat transfer. This model, called "Seta", replaced the steady-state version based on Lookup table seen in previous generation simulations. Slightly Mad Studios' Project CARS 2 sequel in 2017 saw improvements based on community feedback.
Sim racing experienced an exponential rise in exposure in 2020, following the suspension of global racing series due to the COVID-19 pandemic. With no live races available, racing organizations, teams, and broadcasters turned to virtual competitions to maintain fan engagement. Live streaming of sim racing games from official racing series drew as many as 400,000 viewers. iRacing saw a 50% increase in its subscription base in the first few months of 2020, reaching 160,000 subscribers in April of that year.
Initially releasing in early access, Studio 397 and Motorsport Games released Le Mans Ultimate on 22 July 2025, an officially licensed simulation of the FIA World Endurance Championship and European Le Mans Series. Built on an improved version of rFactor 2's ISImotor physics engine, Le Mans Ultimate became notable for its in-depth simulation of the Le Mans Hypercar and LMDh hybrid systems and tire model behavior.
Sim racing has also grown to become a suitable a training tool for drivers; 2024 IMSA SportsCar Championship GTD Pro champion Laurin Heinrich has previously described himself as a 'hybrid driver', frequently competing in officially-sanctioned sim racing events alongside his real-world endeavours. In a video with Toyota Gazoo Racing, Super GT driver Rikuto Kobayashi stated that he regularly spends his track time both virtually and in real life.
In his free time, four-time Formula One World Drivers' Champion Max Verstappen competes in sim racing. Having taken part in many sim racing competitions, Verstappen stated that it helps him with his real life racing, keeping him "ready to go". Verstappen is a member of Team Redline; a multinational sim racing team, and has won several marquee IRacing events with the team since 2019. Verstappen's activities in sim racing have gained notoriety from critics for clashing with Grand Prix weekends in some cases, most notably in the 2024 Hungarian Grand Prix, where he criticised Red Bull Racing's strategy calls and the handling and pace of the RB20 over team radio. Verstappen had taken part in an iRacing sim racing event prior to the Grand Prix, racing until 3:00 a.m.
During the COVID-19 pandemic, several racing series used a variety of sim racing games as a platform to host sanctioned events in response to the global disruption of motorsport. Following the cancellation of part of the 2020 Formula One World Championship due to the pandemic, many Formula One drivers, such as George Russell, Lando Norris, and Alexander Albon, took part in Virtual Grands Prix, using the online features of the official F1 2020 video game. The IndyCar Series also held the IndyCar iRacing Challenge on IRacing as a temporary replacement for the suspended 2020 IndyCar Series, which featured full-time IndyCar drivers and guest drivers from series such as Formula One and NASCAR. The FIA World Endurance Championship held the Le Mans Virtual Series on rFactor 2.
Sim racing games that include some form of ranked online racing are iRacing (with iRating and safety rating), Gran Turismo Sport (with Driver Class and Sportsmanship Points),Jordan Greer Gran Turismo Sport's "Advanced Matchmaking System" & "Sportsmanship Points" Detailed, at gtplanet.net, June 22, 2016 (updated Aug 3, 2016) Project CARS 2 (Racecraft Ranking and Skill Rating), RaceRoom (with Reputation Rating and Rating), Gran Turismo 7, and Assetto Corsa Competizione. Other sims have similar systems under development, like Automobilista 2 and rFactor 2.
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