The first video games, developed in the 1960s, were not usually┬аcommercialised. They required┬аmainframe computers┬аto run and were not available to the general public. Commercial game development began in the '70s with the advent of┬аfirst-generation video game consoles┬аand early┬аhome computers┬аlike the┬аApple I. At that time, owing to low costs and low capabilities of computers, a lone┬аprogrammer┬аcould develop a full and complete game. However, in the late '80s and '90s, ever-increasing computer┬аprocessing power┬аand heightened expectations from┬аgamers┬аmade it difficult for a single person to produce a mainstream┬аconsole┬аor┬аPC game. The average cost of producing a┬аtriple-A video game┬аslowly rose, from┬аUS$1тАУ4┬аmillion in 2000, to over $5┬аmillion in 2006, then to over $20┬аmillion by 2010[citation needed].
Mainstream commercial PC and console games are generally developed in phases: first, in┬аpre-production,┬аpitches,┬аprototypes, and┬аgame design documents┬аare 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 20тАУ100 individuals with various responsibilities, including┬аdesigners,┬аartists,┬аprogrammers, and┬аtesters.