If you are looking for a game that will make you relax and be stress-free, you should try playing Pencil Racer game. This game is for players who like racing games and knows how to draw. You do not need to be very good in drawing. You just need to know how to draw car trucks. To play the game, you will draw the tracks using your mouse. Then choose a vehicle from a selection and let it run on the tracks you just drew.
There is a variety of vehicles to choose from; you can pick from a horse toy to a military tank. You can design your tracks under the tools menu, you can apply much or less stickiness and friction to it. You can make it bumpy, smooth, rising, going down, however you like. You can save your game and even share your selection with friends.