Stellaris - Anniversary Edition (Steam)

In Stellaris: Leviathans, the galaxy will be filled anew with adventure and challenge as your new and naïve space-faring empire comes face-to-face and ship-to-ship with a host of dangers and rewards.

The stars have called you for millennia and now you walk among them. A universe of possibilities is open to your species as it takes its first fitful steps into the great unknown. Here you can turn your back on the divisive politics of the home planet. Here you can build something new. Here you can unify your people and build that perfect society. Only in space can you build Utopia. Utopia is the first major expansion for Stellaris, the critically acclaimed science fiction grand strategy game from Paradox Development Studio. As the title suggests, Utopia gives you new tools to develop your galactic empire and keep your people (or birdfolk or talking mushrooms) happy. Push your species further out into the galaxy with new bonuses for rapid exploration or stay closer to home before striking out against all who would challenge you.

Stellaris: Synthetic Dawn provides an all-new way for players to establish their empire across the stars, starting the game as a Machine Empire -- a society made up entirely of robots. Unique game features and event chains will allow the machines to expand as a robotic consciousness, and create an AI-led network that grows to galactic dominance.

Stellaris: Apocalypse redefines stellar warfare for all players with a host of new offensive and defensive options. Destroy entire worlds with terrifying new planet-killer weapons, fight against (or alongside) ruthless space pirates, and maybe discover a few non-violent game features as well.

Stellaris: MegaCorp is the latest full expansion for Paradox Development Studio’s iconic sci-fi grand strategy game, which has players ushering in an era of prosperity and profit on a galactic scale. In this economy-focused expansion, players can become the CEO of a powerful corporate empire to expand operations across the stars.

In this new discovery-themed pack, players will uncover new anomalies and storylines, and encounter strange new beings in the uncharted depths of space.

Uncover the ruins of long-dead civilizations in Relic Worlds to piece together the story of their rise and eventual downfall. Mine their derelict cities and ships to unearth the truth, discover powerful relics and harness them for your own empire’s ambitions.

The supreme art of war is to subdue the enemy without fighting. With the Stellaris: Federations expansion, players can extend their diplomatic dominion over the galaxy like never before. Use every trick in the book to gain an edge on friend and foe alike, with a host of new options to influence, manipulate, and dominate without firing a shot.

Nemesis is an expansion to Stellaris in which you will be able to determine the fate of a destabilizing galaxy. Adding espionage tools, a path to power as the Galactic Custodian - or the Menace option to become the crisis - Nemesis gives you the most powerful tools ever available in Stellaris.

The Lithoids Species Pack features a selection of new rock-based species portraits and ship models for players who take nothing for granite and are looking to unearth a more grounded civilization.

The Necroids Species Pack features a brand new selection of portraits, civics, ship sets and other cosmetics for players who don’t fear the afterlife, and a unique Necrophage origin with new civics.

The Necroids Species Pack features a brand new selection of portraits, civics, ship sets and other cosmetics for players who don’t fear the afterlife, and a unique Necrophage origin with new civics.

Realize your Grand Design Overlord, a new full expansion for Stellaris, grants access to new features designed to unlock the next level of your empire. New mechanics to specialize your vassals’ roles within your empire and new magnificent megastructures to project your power further, faster.

Plantoids Species Pack introduces a new phenotype for players with original art and animations. As the title implies, Plantoids will give Stellaris fans access to a plant-like species that has gained sentience and begun to spread its tendrils across the galaxy, planting the roots of new civilizations on new planets.

Embrace the life of a seafaring civilization as you sail the open expanses of the galaxy with Stellaris' most immersive pack yet: the Aquatics Species Pack! Let a wave of new customizable options for your empire crash into Stellaris, with a treasure trove of new species portraits, ship set, origins and more.

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You are not alone! The galaxy is vast and full of wonders, but it’s also full of alien empires you’re going to encounter, whether you’re ready or not. First Contact offers a set of new origins and mechanics that give players the chance to tell stories about their civilizations’ early encounters with visitors from the stars — ones that may not have come in peace!

Add Galactic Paragons to your empires and experience a new level of character and story as great leaders follow your lead to the stars. With exclusive additions to the all-new Council mechanic, leaders who you can shape to amplify the vision for your empire, new civics and more.

Includes a new core system and technologies. New planes to explore. New branching narratives.

It is an age of technological glory, rapid social change, and unbridled ambition… But in the depths of space, a danger unlike any before encountered is about to emerge, a looming threat that will throw the very meaning of life into question.Welcome to The Machine Age!

A new phenomenon has been observed around the Galaxy - storms are sweeping through system. Prepare your Empire and brace to face this new upcoming threat, and leverage possibilities that open when your opponents are weakened by it.

The Galaxy is vast and full of wonders, and it is up to you to store records of all the unique lifeforms and marvels you will meet. Build a new megastructure, and collect examples of specimens you will meet in your space-faring adventures!

BioGenesis is an expansion for Stellaris, released as a part of the Season 09 Expansion Pass in 2025. Step into the role of a master geneticist, sculpting the galaxy to your design with living ships, engineered ecosystems, and enhanced species. Forge new paths with unparalleled bioengineering tools to create a civilization that thrives on adaptability and evolution – or exploit these tools to dominate the stars.