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The cheapest price is 14.79€ (-100%) at GamersGate with a rating of 3.6 (527 reviews) · Version Steam Key · Region Global · We compare prices at 4 verified stores with 4 active offers · Updated on 05/12/2025 08h 23min. ago

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About Galactic Civilizations 4 Megastructures

Elevate your civilization to unprecedented heights with the Megastructures expansion for Galactic Civilizations IV. Harness the immense power of stars to construct awe-inspiring megastructures on an unimaginable scale. 

Megastructures

The pinnacle of technology, Megastructures are powerful structures capable of tipping the cosmic scales in your favor. Each Megastructure has something unique to offer and your decision on which to build can have drastic implications.

Power your Megastructure Ambitions with Dyson Spheres

Dyson Spheres are the ultimate energy engines that drive your civilization’s evolution through fueling massive Megastructures that redefine your empire. The color of a Dyson Sphere’s host star dictates its potential Energy Output making Energy-rich white stars a valuable resource.

The Stellar Nexus: The Ultimate Megastructure

The Stellar Nexus will be the core of your civilization and can be customized to become a Megastructure with many possible powerful benefits. A Stellar Nexus can be upgraded into a powerful new form by installing a Nexus Augment. These Nexus Augments provide various potent effects based on the color of the Nexus' host star and are divided into three tiers denoting the strength and range of their effects. Which Augment will you build?

Transform Galactic Travel with Stellar Gateways

Instantly link distant black holes to revolutionize travel. These powerful Megastructures develop new avenues for military maneuvering, rapid expansion, and even extended trade routes. Additionally, civilizations with Stellar Gateways can forge greater alliances with the Open Gateways Treaty which will allow fleets from either faction to utilize their respective Gateways.

Build Ringworlds to Ensure your Civilization's Legacy

Build colossal, Class 39 artificial ring planets to house immense populations and secure your civilization’s future. Much like the Stellar Nexus, Ringworlds are influenced by the color of their host stars and provide different tile bonuses accordingly. By constructing these gigantic habitable rings, you can ensure that your civilization will never run out of planets to inhabit and forever make your mark on the galaxy.

All New Quests and Events

Uncover cosmic secrets with all new quests and events designed to introduce the awesome features of Galactic Civilizations IV’s latest expansion. Discover Ruined Ringworlds and use their ancient technology to make powerful breakthroughs in Megastructure engineering.

  • New Improvements: Harness ancient Ringworld technology to create powerful new Improvements to enhance your colonies and outpace the competition.

  • New Orbitals: Further utilize the technology found in Ruined Ringworlds to extend the reach of your colonies beyond by building new Orbital Improvements. Additionally, the same technology can now be used to upgrade existing Orbital Improvements to create unstoppable colonies and core worlds.

  • New Ship Components: Build bigger, more powerful ships using cutting-edge technologies inspired by this ancient race of builders.

Each megastructure presents unique benefits and challenges, requiring careful planning and resource management to meet your empire's needs. As your influence grows, rival empires will take notice, leading to new diplomatic interactions, potential alliances, or conflicts. 

The Megastructures expansion invites players to think bigger and bolder, redefining the scale and scope of their galactic ambitions in Galactic Civilizations IV. 

Everything you need to know to buy Galactic Civilizations IV - Megastructures for PC at the best price


Assuming we all know what digital versions of games are, which usually come in digital code, key or Steam Key format, let's highlight the 3 most interesting formats for buying Galactic Civilizations IV - Megastructures for PC in digital format, although there may be others:

-Galactic Civilizations IV - Megastructures Steam Account: This is an account that contains the game Galactic Civilizations IV - Megastructures already installed. It's cheaper than the rest, but it may violate certain platform policies, and its activation process is not as straightforward as digital keys.

-Galactic Civilizations IV - Megastructures Steam Key: It's a cd key that will allow us to activate Galactic Civilizations IV - Megastructures on our Steam account. It's the most recommended digital version, for its price and ease of activation. If you want to know how to activate this format easily, you can visit our blog with the entire activation process for keys on Steam.

-Galactic Civilizations IV - Megastructures Steam Gift: It's a URL that will activate Galactic Civilizations IV - Megastructures on your account and leave everything ready for you to start downloading the game. It's a cheap format with very fast activation, but it has more problems than the other formats.

Our recommendation: Buy Galactic Civilizations IV - Megastructures for PC in Key or digital code format!

Can I activate the STEAM Key of Galactic Civilizations IV - Megastructures in my region?


Digital formats of games, and in this case for Galactic Civilizations IV - Megastructures, often have different activation regions. Currently, at Gocdkeys, we differentiate 4 regions:

Global: Which means you can activate that game anywhere in the world.
EU: You can only activate that digital key in regions or countries within the European Union.
US: It's only possible to activate that code in North America.
UK: It's only possible to activate that key in the United Kingdom.

Our recommendation: Buy Galactic Civilizations IV - Megastructures in your corresponding region or in Global if you prefer not to take risks!

Are all stores selling Galactic Civilizations IV - Megastructures for PC reliable?


We have 13 years of experience in the digital gaming market and have always resolved any issues our users have had with any store. So, you should trust us, as we will respond to any problems that arise with any of the stores we list. Just contact us and we will help you.

Information about Galactic Civilizations IV - Megastructures for PC


Galactic Civilizations IV's Megastructures expansion takes your civilization's progress to impressive levels. In this new installment, you'll have the opportunity to build gigantic works of engineering that can change the fate of your empire. These monumental structures offer unprecedented strategic and technological advantages, so choosing which megastructure to build can have a crucial impact on the development of your civilization.

One of the most powerful creations is the Dyson Sphere, a structure designed to make the most of a star's energy. The color of the star you choose determines how much energy you can extract, with white stars being the most productive. This energy can power other megastructures and ensure your civilization stays at the technological forefront.

The Stellar Nexus is another key piece in this expansion. This megastructure can be customized and upgraded with so-called Nexus Augments, which offer unique benefits depending on the color of the host star. These upgrades influence the performance of your empire and allow you to tailor the structure to your strategic needs. Deciding how to optimize the Nexus can be critical to dominating space.

Additionally, Stellar Gateways revolutionize galactic transportation by connecting distant black holes, facilitating the mobility of your fleets. These portals allow for faster expansion, more efficient trade routes, and new military maneuvers. By establishing the Open Portal Treaty, you can cooperate with other civilizations and share these strategic routes.

Most common FAQs when buying Galactic Civilizations 4 Megastructures for PC in digital format:

  • What is the key for Galactic Civilizations 4 Megastructures on PC?

    It is a key that will allow you to download the game Galactic Civilizations 4 Megastructures on your PC from official download platforms.

  • What's the best price for buying the key of Galactic Civilizations 4 Megastructures for PC?

    As of 05/12/2025, in United States, the best price we have found in our selection of online stores that include the key for Galactic Civilizations 4 Megastructures on PC is €14.79.

  • Why is the Steam Key of Galactic Civilizations 4 Megastructures safer than the account format? See more

    The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download Galactic Civilizations 4 Megastructures to your game library. The account format requires more complicated steps and is more prone to errors during activation.

  • What issues can arise when activating a Steam Key of Galactic Civilizations 4 Megastructures? See more

    The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought Galactic Civilizations 4 Megastructures, and they will provide a new key. You can also contact us, and we’ll help you out.

  • How long will I have to wait to receive the Steam Key of Galactic Civilizations 4 Megastructures after purchasing it from a store? See more

    Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.

    Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.

    If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.

  • What guarantee do I have that the listed stores are reliable? See more

    At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.

    There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.

    In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.

Need more help? Use our FAQs.

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About of Galactic Civilizations 4 Megastructures

Release date 12/10/2024
Users rating
0/5 (0 Comments)
Steam comments Mostly Negative Mostly Negative (22 Comments)
Categories
Strategy Strategy
Tags
Strategy Simulation Multiplayer Singleplayer Online Co-Op Exploration Replay Value Management Sandbox Moddable

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English*, German, French, Russian, Spanish - Spain, Polish, Spanish - Latin America, Portuguese - Brazil, Portuguese - Portugal, Italian, Simplified Chinese*languages with full audio support

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