The fourth Grand Theft Auto, released in 2008, marked a deliberate change of tone for the series. Rockstar North set aside the cartoon excess of the previous entries in favour of a more sober story about an immigrant trying to establish himself in Liberty City and being drawn into organised crime along the way. Narrative received far more room than before, and the protagonist arrives with motivations that are actually stated rather than implied.

Structurally it is an open world alternating story missions, free movement around the city and optional activities. The most obvious technical advance was physical simulation: vehicles carry weight and momentum, characters stumble and fall convincingly, and gunfights are built around a cover system borrowed from the action games of the period. A relationship layer runs alongside the missions, with supporting characters contactable by phone.

The city is designed as a plausible place rather than a playground stuffed with collectibles. Traffic density, pedestrian behaviour and radio stations with period-appropriate music combine into an environment that functions convincingly on its own terms. That commitment to credibility was new for the series and divided its audience, since it came at the cost of some of the playful absurdity earlier entries traded on.

It is primarily a single-player game with an additional online component. OldGame.cz keeps a profile with screenshots and details covering the developer, release year and the game's place within the series.