Inspiral: Echoes of Gravity

In 2015, LIGO made the world’s first direct detection of gravitational waves with the event GW150914, confirming for the first time in history the existence of binary black hole systems. In most space-themed games, you pilot a spaceship or colonize planets. But in this game, you become a celestial body. Start as a lonely asteroid, grow by absorbing smaller objects, and evolve step by step—from asteroid to planet, to star, and ultimately to a black hole that devours everything. All of this unfolds in a vast sandbox universe driven by real physics. Gain mass by absorbing smaller asteroids and progress through multiple cosmic stages, each unlocking new abilities and challenges: As a planet, nurture life and protect your own world; As a star, your powerful gravity can capture planets and build your own planetary system; As a black hole, nothing can escape your grasp. Explore freely in a universe governed by authentic gravitational and orbital...