HellPunk: Purgatorium

Asher Drake, the protagonist, lives a rough life.
His younger sister, the only family he had left, disappeared 20 years ago and he still travels the country trying to find out the truth behind her disappearance.
But one day, a freak accident strikes
When he opened his eyes, all he saw was steam, running machinery, and... The tower.
Realizing that his sister is in the giant tower in front of him, he starts a death race up and down the hellish tower to find the truth about his missing sister.

HellPunk is a 2D action gore roguelite game. You play as the main character Asher Drake, who must help Leviathan conquer the Tower and solve the mystery of his family's vanishing.