Hollow Knight is a metroidvania style game developed by Team Cherry. You assume the role of an unnamed bug headed to the fallen kingdom known as Hallownest. You uncover mysteries as you fight bugs and befriend others. The combat is extremely simple and manages to be fun anyways. Amazing game but has a slow start.
There are a lot of different areas in this game, and it's pretty vast. The combat is simple yet fun.
Some of the areas are very peaceful (and make really great wallpapers).
The soundtrack is pretty neat too, I would say. It's really good though listen to it.