蝕影緋之契 is an immersive adventure game set in the Heian period of Kyoto, where players assume the role of a descendant of a divine protector. The game features a rich narrative intertwined with Japanese folklore, including the mysterious 'Blood Moon Wedding' plot that players must unravel. Players can collect cards representing various spirits, engage in dynamic turn-based battles, and explore multiple branching storylines that change based on their choices. The stunning visuals and cinematic animations enhance the storytelling experience, immersing players in a world where beauty and fear coexist.

The game offers a unique gameplay experience with its original spirit summoning system and strategic combat mechanics. Players can summon ancient spirits to aid in their battles against formidable bosses and utilize a variety of spells and abilities. With a focus on Japanese aesthetics, the game presents a visually captivating atmosphere that draws players into its eerie yet enchanting setting. Additionally, the game includes casual gameplay elements and limited-time events, providing a balanced mix of intense combat and relaxed exploration.