As far as sandbox games go, there are few that could ever be considered more brutal than Don't Starve. That brutality, however, is a case of having to learn how the game works over it being purposely punishing. Once you figure out how everything works, Don't Starve becomes one of the most addictive games out there.
You play as Wilson, a genius inventor who finds himself on a strange and unexplored world, full of weird creatures, dangers, and surprises. You will need to gather food and resources and construct inventions to help you craft new items, all the while staying sane.
Most importantly, you must make sure you have light at night time. Within the darkness, an evil awaits to consume you. There is a roster of different and crazy characters to unlock, each with their own advantages and disadvantages that change up the gameplay.
With addictive gameplay, a unique art style and a world like nothing you have seen before, Don't Starve is an absolute must play.