Video game clone in the context of "Porting"

A personal computer game, or abbreviated PC game, also known as a computer game, is a video game played on a personal computer (PC). The term PC game has been popularly used since the 1990s referring specifically to games on "Wintel" (Microsoft Windows software/Intel hardware) which has dominated the computer industry since.

Mainframe and minicomputer games are a precursor to personal computer games. Home computer games became popular following the video game crash of 1983. In the 1990s, PC games lost mass market traction to console games on the fifth generation such as the Sega Saturn, Nintendo 64 and PlayStation. They are enjoying a resurgence in popularity since the mid-2000s through digital distribution on online service providers. Personal computers as well as general computer software are considered synonymous with IBM PC compatible systems; while mobile devices – smartphones and tablets, such as those running on Android or iOS platforms – are also PCs in the general sense as opposed to console or arcade machine. Historically, it also included games on systems from Apple Computer, Atari Corporation, Commodore International and others. Microsoft Windows utilizing Direct3D become the most popular operating system for PC games in the 2000s. Games utilizing 3D graphics generally require a form of graphics processing unit, and PC games have been a major influencing factor for the development and marketing of graphics cards. Emulators are able to play games developed for other platforms. The demoscene originated from computer game cracking.

The history of video games began in the 1950s and 1960s as computer scientists began designing simple games and simulations on minicomputers and mainframes. Spacewar! was developed by Massachusetts Institute of Technology (MIT) student hobbyists in 1962 as one of the first such games on a video display. The first consumer video game hardware was released in the early 1970s. The first home video game console was the Magnavox Odyssey, and the first arcade video games were Computer Space and Pong. After its home console conversions, numerous companies sprang up to capture Pong's success in both the arcade and the home by cloning the game, causing a series of boom and bust cycles due to oversaturation and lack of innovation.

By the mid-1970s, low-cost programmable microprocessors replaced the discrete transistor–transistor logic circuitry of early hardware, and the first ROM cartridge-based home consoles arrived, including the Atari Video Computer System (VCS). Coupled with rapid growth in the golden age of arcade video games, including Space Invaders and Pac-Man, the home console market also flourished. The 1983 video game crash in the United States was characterized by a flood of too many games, often of poor or cloned qualities, and the sector saw competition from inexpensive personal computers and new types of games being developed for them. The crash prompted Japan's video game industry to take leadership of the market, which had only suffered minor impacts from the crash. Nintendo released its Nintendo Entertainment System in the United States in 1985, helping to rebound the failing video games sector. The latter part of the 1980s and early 1990s included video games driven by improvements and standardization in personal computers and the console war competition between Nintendo and Sega as they fought for market share in the United States. The first major handheld video game consoles appeared in the 1990s, led by Nintendo's Game Boy platform.

The video game industry in China currently is one of the major markets for the global video game industry, where more than half a billion people play video games. Revenues from China make up around 25% of the nearly US$100 billion global video game industry as of 2018. Since 2015, China has exceeded the contribution to the global market from the United States. Because of its market size, China has been described as the "Games Industry Capital of the World" and is home to some of the largest video game companies. China has also been a major factor in the growth of esports, both in player talent and in revenue.

China has not always been a major factor in the industry, having been on the verge of economic recovery during the industry's formulative years in the 1970s and 1980s. With the introduction of the second-generation home gaming consoles in the mid-1980s, a new black market of illegally-imported goods and video game clones arose to avoid the high costs of imports, driving away foreign companies. Notably, China imposed a near-complete ban on video game consoles in 2000, fearing the addiction-like impact of games on its youths; the ban was ultimately lifted in 2015. During that time, China's video game market greatly expanded in the area of computer games (including massively multiplayer online games, browser games, social network games, etc.) and later mobile games, all which could be free to play titles with monetization to appeal to the average lower income of Chinese players. This massive growth from 2007 to 2013 led the games' publishers and operating companies like Tencent and NetEase to become large global companies. Despite the legitimate growth of the industry, China's video game market continues to be offset by illegal importing, copyright violation and intellectual property theft.