Did you know there are other kinds of games out there besides 8-bit platformers? I was as shocked as you are. As it turns out, though, some people prefer to play things that don't involve shooting guns, jumping on enemies or collecting coins. Things like Puzzle Retreat which is a delightfully clever yet simple game for the casual player.
The basic premise is simple. You have a set number of ice cubes that need to be slid into place. In later levels, new blocks that change the direction the cubes slide, or that melt already placed cubes show up.