Once a games franchise hits its fourth outing, it is certainly mature yet maturity is not a word generally associated with Borderlands, the colourful and performatively edgy looter-shooter from Texas. This series is characterised by a pervasive and polarising streak of distinctly adolescent humour. But in Borderlands 4, developer Gearbox has addressed that issue: it features plenty of returning characters in its storyline, but this time around they are more world-weary and less annoyingly manic. Borderlands has finally matured, to an extent.