Grotto is a mystical, narrative-focused experience. You are the Soothsayer. The one capable of talking with the stars and unveiling their messages. In a time of turmoil, the tribe of the valley turn to your powers of divination and come to you for guidance.
You take on the role of a soothsayer or diviner, communicating with the members of a local tribe through the interpretation of celestial constellations. The core gameplay loop involves having visitors come to your grotto, asking questions, and then you selecting and drawing constellations as responses, which the visitors then interpret in their own ways.
When a visitor arrives and asks a question, you must examine the night sky in your grotto and connect the stars to form constellations. These constellations then serve as your response, which the visitor will interpret based on their own biases and experiences. This creates an interesting dynamic where your intent may not necessarily align with how the message is received, leading to unexpected and often tragic consequences.
As the game progresses, you gain access to additional tools and methods of communication beyond the basic constellation interpretation. This includes the ability to consult bones, a musical instrument, and a smoking pipe, each of which offers a different approach to divination and relaying information to the visitors. These expanded communication options add depth to the gameplay, allowing you to approach problems from multiple angles and potentially uncover more detailed or insightful guidance for the tribe. However, the core challenge of accurately anticipating how the visitors will interpret your responses remains a central focus throughout the game.
While the experience is primarily narrative-driven, your choices and actions have a meaningful impact on the story's progression and outcome. The decisions made during constellation interpretation can lead to drastically different events and consequences for the tribe, with no clear "right" or "wrong" answers. This emphasis on player agency and the weight of your choices is a significant part of what makes the experience so compelling. The game's willingness to present difficult moral dilemmas and allow you to grapple with the consequences of your actions creates a sense of investment and emotional investment in the narrative.