900 is a single-player action game in which players control an entity that absorbs universes to grow continuously, emphasizing fast-paced and skillful gameplay. In this game, set in a vast and abstract universe, players navigate through different cosmic environments, aiming to absorb as many universes as possible to increase their size and power. It stands out with its minimalist design, intense score attack mechanics, and focus on precision and timing, offering a challenging experience that rewards mastery and quick reflexes.