For over a decade, players in Counter-Strike have been able to unwind with a certain class of maps. They're called kz - short for kreedz - and they're a series of obstacle courses where players climb, swing, surf, bunnyhop and bungee jump their way to the finish line.

Previously, you'd have had to fire up Counter-Strike and dig through the server browser to get your parkour fix. And if that sounds like your cup of tea, Kreedz Climbing offers a similar style of gameplay in a standalone, free-to-play package.