A multiplayer space simulator to play with friends. Control your planet's gravity to pull in rare gases, absorb space dust, and increase your mass. Progress through all stages of cosmic evolution: from a gas giant and a blazing star to a supermassive black hole.

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Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Planet Forge is my solo-developed space simulator. I am entering Early Access to test the gravity mechanics and multiplayer with real players, and to develop the planet evolution chain together with the community.
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Approximately how long will this game be in Early Access?

“I plan to keep the game in Early Access for about 6 to 12 months. This time is needed to stabilize multiplayer and add planned mechanics.”

How is the full version planned to differ from the Early Access version?

“The full version will feature advanced celestial objects like quasars, magnetars, and pulsars. I plan to add satellite creation mechanics and hypothetical objects such as white holes. Additionally, a full custom map editor will be implemented, allowing players to edit, save, and load their own cosmic systems, along with improved multiplayer optimization and new asteroid/gas types.
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What is the current state of the Early Access version?

“The core mechanics are ready: players can navigate space, use gravity to collect gases, increase mass, and evolve from a regular planet to a gas giant, a star, and finally a black hole. Real-time multiplayer is also implemented.
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Will the game be priced differently during and after Early Access?

“The game will have a lower price during Early Access. As I add new features, content, and unique cosmic objects for the full release, the price will gradually increase.
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How are you planning on involving the Community in your development process?

“I will carefully review player feedback, bug reports, and cosmic object suggestions posted in the Steam Community Hub / Discord Server to prioritize future content updates and custom map editor improvements.
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This game is not yet available on Steam

Planned Release Date: Oct 16, 2026

This game plans to unlock in approximately 2 weeks

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About This Game

Planet Forge is a space simulation game where you control a planet, with the option to play together with friends. Players navigate their celestial body through space, utilize gravity mechanics to attract resources, and progress through successive stages of cosmic evolution based on accumulated mass.

Key Features of Planet Forge:

  • Cosmic Evolution Chain — Absorb elements in space to increase your mass and seamlessly transform your celestial object: from a regular planet to a gas giant, then into a blazing star, and finally into a supermassive black hole.

  • Own Gravity Mechanics — Increase your object's mass and density to strengthen its gravitational field. Powerful gravity allows you to more effectively pull in surrounding gases, space dust, and passing asteroids.

  • Cooperative Mode — Navigate through space and develop celestial bodies together with your friends in real time.

  • Gas Collection and Atmosphere — Locate and harvest various types of gases to modify the physical properties and overall mass of your object.

  • Climate Control — Manage the temperature of your celestial body through core heating and deep freezing.

System Requirements

    Minimum:
    • OS: Windows 10
    • Processor: Dual-Core 2.0 GHz
    • Memory: 2 GB RAM
    • Graphics: Intel HD Graphics 4000
    • DirectX: Version 11
    • Network: Broadband Internet connection
    • Storage: 256 MB available space
    • Sound Card: DirectX Compatible Sound Card
    Recommended:
    • OS: Windows 11
    • Processor: Intel Core i3 / AMD Ryzen 3
    • Memory: 4 GB RAM
    • Graphics: Nvidia GTX 750 Ti / AMD Radeon R7
    • DirectX: Version 12
    • Network: Broadband Internet connection
    • Storage: 512 MB available space
    • Sound Card: DirectX Compatible Sound Card
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