The game alternates between top-down exploration and first-person battles. Players move through the Starlight, search rooms, collect items, solve progression obstacles, and speak with other survivors.

During combat, an aiming marker moves across an enemy. The player must press the attack button at the right moment to hit, while ammunition and healing items must be managed carefully. The story advances through connected areas, key items, scripted events, and boss encounters.

Search every accessible room before moving on, since key items and ammunition are easy to overlook.

Use the combat timing system patiently rather than firing immediately. Conserve healing items for boss encounters, and keep track of locked doors and story clues so backtracking is purposeful.