Sphere – Flying Cities is a sci-fi citybuilder which combines strategy, simulation, and survival elements in an extraordinary and immersive scenario. Rebuild and protect a society in a unique and hostile environment. Pay the price for your decisions and be prepared to lose everything.
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Release Date:
Oct 14, 2021

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Early Access Game

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Note: This Early Access game is 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?

“By going Early Access, we aim to get valuable feedback from you, the community, and include your ideas in our game development processes. This way, a small studio like ours can turn a really good first version of Sphere into a refined and great game.”

Approximately how long will this game be in Early Access?

“We estimate that the Early Access phase will last for 12 months.”

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

“The full version of Sphere - Flying Cities will provide a deeper and more atmospheric game experience. It will include new features like oxygen management, additional buildings, more animations and effects as well as additional story-telling elements. Of course, we also aim to include as much of your feedback as possible.”

What is the current state of the Early Access version?

“The Early Access version of Sphere - Flying Cities offers a gaming experience of multiple hours. The economic circuits of the flying city are fully working and you will have to keep your colony functioning in the face of dangers while searching for raw resources. You can improve the flying city through the development of technologies and upgrades and immerse yourself into the fantastic world of Sphere. But remember, this is a survival citybuilding game – so any wrong decision will have severe consequences.”

Will the game be priced differently during and after Early Access?

“Yes – the full release version's price of Sphere - Flying Cities will be higher than the price of the Early Access version.”

How are you planning on involving the Community in your development process?

“We greatly appreciate your feedback and new ideas around the project in general. The Steam-forums and our Discord will be excellent ways to collect this feedback and interact with you and the community.”
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Planned Release Date: October 14

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About This Game

The Save the World Edition includes the game "Sphere - Flying Cities", a mini-artbook and an exclusive in-game skin for the Anti-Gravity Device. In addition, Assemble Entertainment donates 10% of the revenues of this edition to Atmosfair, an environmental development organization that focuses on clean energy climate protection projects. On top of this, it’s the best option for all those who would like to support the work of the developers even more and do something good at the same time.

In the not-so-distant future, Earth’s moon has been struck by a massive asteroid. With the fallout rendering the terrestrial surface uninhabitable, the ecosystem of the planet collapses. Facing complete annihilation, humanity makes one final and desperate attempt to survive — thanks to newly-created anti-gravity technology, the first flying city ascends as the ultimate bastion of the human race.

As Commander, you have been chosen to take control over the flying city in this relentless and unique strategy-blend that combines the best elements of the city-building and survival-game genres. Rebuild and protect a society in a seemingly uninhabitable environment. Utilize the Anti-Gravitation device to navigate your flying city across the globe into the treacherous unknown. Stay vigilant, as each decision could have ghastly consequences; be prepared to lay it all on the line to succeed, else risk losing everything you worked for.

  • Build It and They Will Come: Erect a living, thriving city and maintain your ecosystem via resource management mastery and infrastructure supported by independent economic cycles.
  • Do not Look Down: Ensure your anti-gravity device and its expanding deflector shield are always kept in tip-top shape, as an insufficient power supply will result in a quick demise.
  • Send in the Robots: Utilize drones and other scout technologies in hazardous environments to construct buildings, harvest resources, and search for stranded survivors and rare materials in uncharted territories.
  • A Scientist in Space: Research new technologies to improve the efficiency of every aspect of your city and withstand a plethora of (un)natural disasters like geomagnetic storms, asteroids, and poisonous clouds.
  • A Delicate Ecosystem: The well-being of your people is crucial to the success of the mission. Carefully tend to the needs of your colonists by supplying food, healthcare, and shelter. But don’t forget, the survival of many may require the deaths of the few. Sacrifices are an inevitable imperative.

System Requirements

    • OS: Windows 7/8/10 64-bit
    • Processor: 3.2 GHz Dual Core Processor
    • Memory: 4 GB RAM
    • Graphics: GeForce GTX 660, Radeon R7 370 (or equivalent), 2 GB video RAM
    • DirectX: Version 12
    • Storage: 3 GB available space
    • Sound Card: DirectX compatible
    • OS: Windows 7/8/10 64-bit
    • Processor: 3.2 GHz Quad Core Processor
    • Memory: 8 GB RAM
    • Graphics: GeForce 970, Radeon RX 580 (or equivalent), 4GB video RAM
    • DirectX: Version 12
    • Storage: 3 GB available space
    • Sound Card: DirectX compatible
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