Spelunky Classic
Developer: Derek Yu
If you’ve been itching to try out the indie phenomenon but don’t fancy paying for the privilege of dying over and over (and over) again, the original Spelunky is a free, pixel-art predecessor to the 2012 smash hit and its recent sequel. Controlling a fedora and bullwhip-wielding spelunker, the aim is to make it past the dangers that await in a giant, procedurally-generated cave, collecting as much treasure as you can on your way down. Despite its adorable aesthetic, however, Spelunky is hiding a dark side, with enough ways to kill you that you’ll still be learning its secrets dozens of hours in.