A skeleton is a set of bones, but it is not eternal, bones can be destroyed by environmental influences or by mechanical shock. The hero of the game Onyx is a skeleton who decided to extend his life by finding a replacement for parts of his body. To do this, he went on a journey through the gloomy afterlife. Help him, the hero will move overcoming obstacles, and if an obstacle appears that cannot be passed in the usual way, you can use the skeleton’s special abilities - the ability to create a clone. With it, the character will penetrate anywhere and cross over any obstacles, collecting skulls.