Possibly the least recognised title on the list, FTL: Faster Than Light was actually funded by a Kickstarter campaign and put together by indie developers Subset Games. Flying through eight different sectors in space, the player has to command and control their spaceship to safety, while fighting off the rebel fleets and deliver cargo to the other end. A simple idea yes? Easy? Not at all. There are zero save points, zero respawns, zero chances at failure or death - no matter how far along you are - results in a complete and immediate game restart. With a mid-game rise in difficulty, this space adventure becomes very tough, very quickly.