Update 0.5.21

Rustil: Eternal Labyrinth Castle

In this exhilarating roguelike action game, the main character, Rustil, acquires abilities from the souls of various heroes in a huge and mysterious labyrinth castle, and aims to reach the top floor while strengthening the main character. All monsters can be captured, raised, and summoned!

- Fixed a bug that character creation did not proceed when starting a new game.