The first video games, developed in the 1960s, were not usuallyย commercialised. They requiredย mainframe computersย to run and were not available to the general public. Commercial game development began in the '70s with the advent ofย first-generation video game consolesย and earlyย home computersย like theย Apple I. At that time, owing to low costs and low capabilities of computers, a loneย programmerย could develop a full and complete game. However, in the late '80s and '90s, ever-increasing computerย processing powerย and heightened expectations fromย gamersย made it difficult for a single person to produce a mainstreamย consoleย orย PC game. The average cost of producing aย triple-A video gameย slowly rose, fromย US$1โ4ย million in 2000, to over $5ย million in 2006, then to over $20ย million by 2010[citation needed].
Mainstream commercial PC and console games are generally developed in phases: first, inย pre-production,ย pitches,ย prototypes, andย game design documentsย are written; if the idea is approved and the developer receives funding, then full-scale development begins. The development of a complete game usually involves a team of 20โ100 individuals with various responsibilities, includingย designers,ย artists,ย programmers, andย testers.