
Start as an asteroid, grow by absorbing other celestial bodies to become a planet, a star, and ultimately a black hole. Experience realistic gravity and orbital physics in an ever-evolving sandbox universe.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
Other games from the same series.
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 mechanics, and create your own cosmic system.
Cosmic Growth System: Evolve from an asteroid to a planet, a star, and finally a black hole, each stage offering unique gameplay and abilities.
Realistic Physics Simulation: Experience lifelike gravity and orbital mechanics—construct stable planetary systems or trigger spectacular collisions and chaos.
Dynamic Sandbox Universe: An ever-evolving universe where new celestial bodies and events continually emerge, and cosmic evolution never stops.
Explore the Binary Black Holes: As the binary black holes grow and spiral toward each other, will you survive—or be swallowed by the void?
Right now the cheapest offer for Inspiral: Echoes of Gravity is PLN 16.75 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Inspiral: Echoes of Gravity is PLN 12.56 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Inspiral: Echoes of Gravity drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
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