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A Galactic Civilizations IV Tales of the Terran Alliance Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €4.02 (€4.20 with fees, -73%) at Difmark Digital Keys, 73% below the €15.49 (no fees) Steam price · 9 verified stores, 10 offers in stock · Updated 07h 06min ago.

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About Galactic Civilizations IV Tales of the Terran Alliance

Humanity's First Test Among the Stars

Tales of the Terran Alliance takes you deep into the 23rd century, when humanity took its first bold steps beyond Earth and encountered the ancient civilizations of the galaxy. This expansion explores the political intrigue, technological breakthroughs, and devastating conflicts that forged the Terran Alliance into a galactic superpower.

Experience the infamous Xendar War firsthand as you guide humanity through its greatest challenges. Make critical decisions that will shape Earth's destiny among the stars and define what it means to be human in a universe of ancient, powerful alien civilizations.

What's Included

The Xendar Civilization
Face humanity's first major interstellar adversary as a fully playable civilization. Experience their unique playstyle, uncover their mysterious origins, and understand why the Xendar War became a defining moment in human history. The Xendar bring their own strategic approach, technologies, events and philosophy to the galactic stage.

Exclusive Human Technology Tree
Unlock a completely unique research path designed specifically for human-based civilizations. This parallel tech tree reflects humanity's innovative spirit and adaptive nature, offering strategic options and technologies unavailable to other species. Chart your own course through humanity's technological evolution and choose the breakthroughs that will define your civilization.

23rd Century Earth Chronicles
Immerse yourself in dozens of narrative events that depict Earth during its transformation from a single-world civilization to an interstellar power. Navigate political crises, social upheaval, economic challenges, and ideological conflicts as you guide humanity through its most turbulent century. Your choices will have lasting consequences for your civilization's identity and place in the galaxy.

Enhanced Military Arsenal
Equip your fleets with cutting-edge human weapons systems and ship components. From advanced kinetic weapons to experimental energy technologies, give your military the edge it needs to defend humanity's interests. New ship parts allow for unprecedented customization of your fleet designs.

New Planetary Infrastructure
Develop your worlds with improvements that reflect human ingenuity and ambition. Build economic powerhouses, cultural centers, research facilities, and military installations that showcase humanity's unique approach to colonization and development. Each improvement tells part of the story of human expansion across the stars.

Quality of Life Improvements
This expansion includes gameplay refinements and balance adjustments based on community feedback, ensuring the best possible Galactic Civilizations IV experience.

Begin Humanity's Greatest Adventure

Tales of the Terran Alliance is more than an expansion—it's a deep dive into the lore that has captivated Galactic Civilizations fans for over 30 years. Whether you're a longtime fan eager to explore humanity's backstory or a newcomer discovering the rich universe of Galactic Civilizations, this expansion delivers a compelling narrative experience wrapped in deep strategic gameplay.

The galaxy is vast. The challenges are immense. The choices are yours.

Will you lead humanity to greatness, or will the Terran Alliance fall before it truly begins?

Key Features

  • Play as the Xendar - A new Spider race with unique improvements and a fast growing play style

  • Exclusive Human Tech Tree - Unlock technologies and strategic options unique to human civilizations

  • Rich Narrative Events - Navigate dozens of story-driven events set during Earth's 23rd century

  • New Ship Parts- Design powerful warships with unique looks

  • New Planetary Improvements - Build infrastructure that reflects human ambition and innovation

  • Expanded Lore - Dive deep into the history that shaped the Galactic Civilizations universe with many new historical interactions

  • Quality Updates - Benefit from gameplay improvements and balance refinements

How much does Galactic Civilizations IV Tales of the Terran Alliance for PC cost right now?

Galactic Civilizations IV Tales of the Terran Alliance for PC starts at €4.02 (€4.20 with fees) at Difmark Digital Keys, a Steam key, which is 73% under the €15.49 (no fees) it costs on the official store.

That €4.02 (€4.20 with fees) already includes the Gocdkeys coupon, so apply it at checkout or the store will show you a higher price.

Only 10 offers across 9 stores carry it, and thin supply means the price barely moves.

That puts it 42% under its average of €8.21 since 2026, so today is a better entry point than most days of its life.

Is it worth buying the Steam Key for Galactic Civilizations IV Tales of the Terran Alliance now or waiting?

That €4.02 (€4.20 with fees) key is at one of its best prices.

  • Those €4.02 (€4.20 with fees) are 43% below what it usually costs, measured on the store price.
  • 9 stores sell the Steam Key at the same time, and with that much competition the price moves almost daily.
  • Not counting today, only 30 days out of the 267 days on record were this cheap or cheaper; the lowest it has ever cost is €4.26.
At this price it is worth buying the Steam Key now: what you stand to gain by waiting is a few euros, and it is not guaranteed.

Worked out from 904 daily records of the Steam Key for Galactic Civilizations IV Tales of the Terran Alliance across 9 stores. See the full price history.

The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.

Can you activate Galactic Civilizations IV Tales of the Terran Alliance in US?

All 10 offers are Global, so the code redeems on any account no matter where it was created.

Most common FAQs when buying Galactic Civilizations IV Tales of the Terran Alliance for PC in digital format:

It is a key that will allow you to download the game Galactic Civilizations IV Tales of the Terran Alliance on your PC from official download platforms.
As of 27/10/2026, in United States, the best price we have found in our selection of online stores that include the key for Galactic Civilizations IV Tales of the Terran Alliance on PC is €4.02 (€4.20 with fees).
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 IV Tales of the Terran Alliance to your game library. The account format requires more complicated steps and is more prone to errors during activation.
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 IV Tales of the Terran Alliance, and they will provide a new key. You can also contact us, and we’ll help you out.
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.
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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Galactic Civilizations IV Tales of the Terran Alliance

Is it worth it?

  • 14%Steam reviews7 reviews
Write a review → See it on Steam →

What the press says

Average of 72 across 13 reviews
US 9 IT 2 PT 1 RU 1

COGconnected

88

There’s been a lot of innovation in strategy games in the last few years, and Galactic Civilizations IV is not a revolution. It’s a sequel,... Read more

Softpedia

85

Galactic Civilizations IV has a solid foundation, in terms of mechanics and presentation, but needs to add polish. I like the wide-ranging customization offered at... Read more

PCGamesN

80

This new space 4X game is nothing novel, but Stardock's latest release builds on classic strategy mechanics while giving them a contemporary, intergalactic twist. Read more

Wccftech

80

Galactic Civilizations IV is another satisfying space-faring extravaganza that introduces some smart tweaks to the long-running series' formula, although a lack of guidance, bloated tech... Read more

About the game

Release date
4 Dec 2025
Genre
Strategy Simulation Management
Modes
Multiplayer Singleplayer
Setting
Exploration Sci-fi Diplomacy
Languages
English* German French

* languages with full audio

Requirements

Minimum:
  • Requires a 64-bit processor and operating system
Recommended:
  • Requires a 64-bit processor and operating system

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