There are a couple of older games that made their way to the PS4 in 2015, and whilst Limbo has appeared on everything from the Xbox Live Marketplace to phones and tablets since 2010, the PS4 version is still worth checking out in all its macabre, sudden-death glory. Playing as a young boy thrown into the depths of... somewhere, Limbo initially helped usher in a wave of brilliantly-realised indie games across the start of the current decade, its sublime controls and hauntingly effective imagery drawing you in regardless. Shadow-puppet visuals and a depth of field fill in the background with all sorts of creepy-crawlies to great effect, but it's controlling the boy himself and just making all sorts of death-defying leaps that'll make you want to see Limbo through to the end.