Stygian Sun: Total Eclipse IF

"Stygian Sun: Total Eclipse IF" is a dark fantasy interactive fiction game where you play as the sibling of the heir to the Solar Imperial throne. When your older sibling is sent to the Lunar kingdom of Celestyl for a political marriage, you have a premonition they will not survive and take their place to protect them. With war looming and tensions high, your choices will determine the fate of the two kingdoms and your sibling's life.