A mix between horror and 2D plateformer that was one of the first milestone of cinematic platformers revival.
It is sober. This sobriety is its strength.
If you seek a mechanical plateformer, it isn't the case of Limbo. Yet, if you seek a plateformer that plays well, plus have some smart puzzles and a total mutism (which is wonderful, I hate when people speak), Limbo is a good choice.

Kids are killed in Limbo, watch out if you dislike that kind of theme.