Adult PC Game: Tower of Damnation final by Orachi Archive

Sisters, a grave error hath occurred, for I have failed in shielding the Tower of Endless Shadows. A force, beyond aught I have witnessed, hath descended. The suffering surpasseth comprehension; it hath come to engulf her. Many of our little sisters lie slain, and she doth burgeon in strength with each passing moment. The horrors unfold relentlessly. We must inform the mistress of this dire calamity, or else this tower hath become damned.
RPG-Roguelike-Gacha Game
Goal of the game is to ascent the tower and grow stronger each run by either the Gacha or increasing your stats and beat the harder bosses.​

Tower of Damnation final by Orachi Gameplay Preview