The survival loop described by Steam

The official listing describes exploring the island, finding food and water, gathering materials, making tools, and improving a shelter. It also lists fishing, hunting, woodcutting, mining, and training stats as activities.

Progression and relationship systems

The store says players can deepen their bond with Mitsuki through actions at the shelter, discover crafting recipes, and attempt to leave by boat. It notes that a failed escape attempt can open new innovations, but gives no exact trigger or recipe.