Downloadable content

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This article is for the PC version of Stellaris only.
Stellaris' DLC tab in the launcher.

Downloadable content (DLC) is content built by Paradox Development Studio (PDS) as an extension or add-on to Stellaris. They are modular in nature,[1] which means that a player can choose to play with or without a given DLC by checking them out at the launch menu. An expansion DLC is normally accompanied by a free patch that gives players most of the new content as not to hinder the playability of the game. As such, most DLCs are seen as optional content for players who wish to have a better gaming experience in exchange for some monetary support.

Multiplayer games also benefit from this compatibility, that is to say if the host has a gameplay DLC (expansions and flavor packs) the player does not, the game acts as if the player has it.

Base game editions

The base game is required for any and all DLC relating to the game. While cosmetic/music DLCs can be used with any game version, content DLCs can't be used prior to the version they were released with.

The base game is available in 2 enhanced editions which consist of e-books, game soundtrack and some forum bonuses (along with one species portrait). To see a more detailed description of the individual DLCs scroll down to their appropriate section (music, cosmetic, e-book).

Title and Quick description D

Banner Stellaris.jpg

Released on 2016-05-09.
  • Customize your Empire!: The characters you choose, be it a murderous mushroom society or an engineering reptile race, can be customized with traits like ethics, type of technology, type of habitat, philosophies and more. The direction of the game is based on your choices.
  • Enormous procedural galaxies: Grow and expand your empire with thousands of randomly generated planet types, galaxies, quests and monsters lurking in space.
  • Deep and varied exploration: Every game begins with a civilization that has just discovered the means to travel between stars and is ready to explore the galaxy. Have your science ships survey and explore anomalies, leading you into a myriad of quests, introducing strange worlds with even stranger stories and discoveries that may completely change your outcome.
  • Infinite variation of species and advanced diplomacy: Through customization and procedural generation, you will encounter infinitely varied races. Choose positive or negative traits, specific ideologies, limitations, evolutions or anything you can imagine. Interact with others through the advanced diplomacy system. Diplomacy is key in a proper grand strategy adventure. Adjust your strategy to your situation through negotiation and skill.
  • Interstellar warfare: An eternal cycle of war, diplomacy, suspicions and alliances await you. Defend or attack with fully customizable war fleets, where adaptation is the key to victory. Choose from an array of complex technologies when designing and customizing your ships with the complex ship designer. You have a multitude of capabilities to choose from to meet the unknown quests that await.
  • Stunning space visuals: With characteristically complex unique planets and celestial bodies, you will enter a whirlwind of spectacles in a highly detailed universe.
Stellaris: Galaxy Edition
Released on 2016-05-09.
  • Stellaris (base game)
  • Complete Soundtrack
  • Arachnoid Portrait Pack
  • Digital Collector's Book (e-book)
  • Stellaris: Infinite Frontiers (e-book)
Stellaris: Ascension Pack
  • Stellaris: Ascension Pack
  • Steam
Includes the following expansions and cosmetic packs:
  • Leviathans.png Leviathans
  • Utopia.png Utopia
  • Synthetic Dawn.png Synthetic Dawn
  • Apocalypse.png Apocalypse
  • Plantoids Species Pack
  • Humanoids Species Pack


Expansions (and story packs) change the game considerably; introducing new and improved gameplay mechanics as well as many kinds of flavor and various balance tweaks (included in the accompanying free patch).

Note: For more detailed information on a specific title click on its banner or icon.

Title and Quick description D

Banner Leviathans.jpg

Released on 2016-10-20.
  • Guardians: Fight or investigate mysterious powerful space entities to unlock technologies and gain access to great treasures.
  • Enclaves: Independent outposts of traders or mercenaries who are willing to make a deal. Exchange resources or hire a small fleet to supplement your own.
  • War in Heaven: Ancient Fallen Empires decide to renew old grievances in a War in Heaven. Pick a side to support or strike at both whilst they are occupied with their own titanic struggle.
  • Adds new events, encounters and 20+ minutes of new music.
  • Cuties Portraits Pack: Adds 5 additional species portraits: Gecko, Butterfly, Starfish, Snailien, and Prettyshroom.

Banner Utopia.jpg

Released on 2017-04-06.
  • Megastructures: Build wondrous structures in your systems including Dyson Spheres and ringworlds, bringing both prestige and major advantages.
  • Habitat Stations: Build "tall" and establish space stations that will house more population, serving the role of planets in a small and confined empire.
  • Ascension Perks: Complete tradition trees to unlock Ascension Perks for your empire. Follow one of the three Ascension Paths and achieve Biological Mastery, give up your biological forms in a Synthetic Evolution, or become a fully psionic species through Transcendence.
  • Indoctrination: Influence primitive civilizations to adopt your ethics through the use of observation stations, preparing them for enlightenment or annexation.
  • Advanced Slavery: Maximize the benefits of slavery by choosing specific roles for enthralled species -- as Domestic Servants, Battle Thralls, or Livestock.
  • Advanced Governments: Adopt unique civics and authorities for your government. Play as a Fanatic Purifier and shun all diplomacy, become a Hive Mind to avoid political strife or create a multi-species empire born of Syncretic Evolution.

Banner Synthetic Dawn.jpg

Released on 2017-09-21.
  • You, Robot: Play Stellaris as a customized robotic civilization, complete with a series of robotic portraits for science robots, worker robots, and more.
  • AI, eh?: Follow new event chains and story features to lead your robot race to greatness as an intergalactic AI empire.
  • Rise of the Machines: Oppressed synths may rebel against their masters and form new empires -- or you may even discover a fallen synthetic civilization deep in space.
  • Digital enhancements: New synthetic race portraits and expanded voice packs for VIR.
  • New music: Featuring three new tracks from composer Andreas Waldetoft expressing the high-tech theme of the story pack.

Banner Apocalypse.jpg

Released on 2018-02-22.
  • Planet Destroyers: Keep the local systems in line with fear of the new "Colossus" planet-killer weapon – a technological terror that eliminates entire worlds from the universe.
  • "Titan" class ships: New enormous capital ships can lead fleets to conquest, offering tremendous bonuses to the vessels under their command. Meanwhile, fortify key systems with massive orbital installations and secure your homeworld as an impenetrable bastion among the stars.
  • Pirates of the Constellation: Watch out for Marauders – space nomads who raid settled empires on the fringe of civilization. Hire them as mercenaries, but take care that they don't unify and trigger a new mid-game crisis!
  • Some non-violent Features: New Ascension Perks and Civics are added in the expansion providing new ways to further customize your inter-stellar empire.
  • Sounds of Destruction: Three new musical pieces from composer Andreas Waldetoft for a pleasurable planet-shattering expedition.

Banner Distant Stars.jpg

Released on 2018-05-22.
  • Behind Closed Doors: Discover hidden traces of an ancient gateway network unlocking a sealed path to a constellation outside our own galaxy.
  • Sensors are Picking up...: Encounter dozens of new anomalies and events for your intrepid scientists to observe and analyze.
  • Brave New Worlds: Plot unexplored unique solar systems, each with their own story to tell. Gain technology, resources, and valuable worlds to colonize.
  • There's Always a Bigger Fish: Meet a number of unique gargantuan creatures in the vacuum of space. But approach with caution, because whether gentle or something more sinister, that is yet to be discovered.

Banner MegaCorp.jpg

Released on 2018-12-06.
  • Corporate Culture: CEOs of a MegaCorp can conduct business on a galaxy-wide scale with a host of new civics. By building Branch Offices on planets within empires they have trade agreements with, the MegaCorp can add a portion of the planet's Trade Value to their own network. Using the new Corporate Authority, construct an economic powerhouse and dominate galactic trade.
  • City World: With Ecumenopolis, players can increase the population density of core worlds to truly epic proportions, eventually creating a planet-spanning megacity.
  • Caravaneer Fleets: Keep an eye out for the Caravaneers, nomadic interstellar wheelers-and-dealers who stay aloof from galactic politics, and always have a bargain up their sleeve. Expect surprises when these master traders wander through your space or when you visit their home systems.
  • More Megastructures: Build a glorious Matter Decompressor, Mega-Art Installation or Strategic Coordination Center to acquire new scaling capabilities for your megalopolis.
  • Galactic Slave Market: Buy and sell pops on an industrial scale, set them free or keep them as livestock.
  • New Ascension perks: Keep a economy competitive in a cutthroat galaxy with additional Ascension perks!

Banner Ancient Relics.jpg

Released on 2019-06-04.
  • Said Ancient Relics: Collect and acquire valuable relics in your adventures as rewards for overcoming major crises or after completing a dig at an archaeological site and solving the chapters. Each relic gives significant benefits to your empire to aid in your interstellar escapades
  • Those Who Came Before: Encounter two new extinct Precursor civilizations, each with their own anomalies. Players can investigate these to understand who they were and, more importantly, what one can learn from their demise.
  • Relic Worlds: Once teeming with life, these Relic worlds now lie dead, covered with desolate ruins and dormant mysteries. Players can create archaeological sites to explore these remains and bring to light powerful relics and artifacts.
  • Matter of Artifacts: Utilizing archaeological research, discover Minor Artifacts, a new resource type which can help empower one's empire.
  • Dig In: Hit the dirt on a variety of enigmatic and alien worlds with more archaeology sites available for your empire to study... or plunder. Each site begins a story with between one and six chapters to investigate. Retrace the history to discover artifacts and relics that can be boons to your empire.

Flavor packs

Flavor packs add new events, event pictures and unit models often specific to particular part of the game.

Title Release Date Quick Description Links
  • Horizon Signal
  • (A free DLC[2])
05 Dec 2016 Written by Alexis Kennedy: A new and rich storyline appearing in a rare event chain that can potentially be triggered at any time in the game.
  • A signal in distant space is calling out to your empire. What does this entity want, and how does it know who you are?

Music packs

Music packs add new music created after the game's release to the game's soundtrack.

Title Release Date Quick Description Links
Banner Complete Soundtrack.jpg

Complete Soundtrack

09 May 2016 Composed by Andreas Waldetoft, performed by Brandenburg State Orchestra and Budapest Film Orchestra with vocals by Mia Stegmar:
  • A living set of music – more tracks to be added as Stellaris continues to expand in the future.
  • Contains 56 tracks (to date), with over five hours of music.
  • Includes bonus tracks and alternate versions of in-game tracks (available in MP3 and lossless FLAC).
Paradox / Steam

Cosmetic packs

Cosmetic packs add graphical enhancements to the game.

Title Release Date Quick Description Links
  • Arachnoid Portrait Pack
  • (part of Galaxy Edition)
09 May 2016
  • Adds an Arachnoid species portrait.
Paradox / Steam
  • Sign-up Campaign
  • (A free DLC[3])
09 May 2016
  • Project Augustus: Adds a Platypus species portrait and Paradox empire symbol.
  • Symbols of Domination: Adds empire symbols.
Plantoids species pack

Plantoids Species Pack

04 Aug 2016
  • Adds a new species phenotype, including:
    • 15 Plantoids portraits
    • Ship-set models for civilian and military Plantoid ships
    • A Plantoid cityscape art.
Paradox / Steam
Anniversary Portraits
  • Anniversary Portraits
  • (A free DLC[4])
09 May 2017
  • Anniversary Portraits: Adds 3 additional species portraits - Fairy Dragon, Larvae, Peacock Avian.
  • Creatures of the Void: Adds 5 additional species portraits:
    • Dinosaur Bird
    • Evil Porcupine
    • Fungoid Infected Mammalian
    • Hydra/Xenomorph
    • Shadowy Anthropoid
Humanoids species pack

Humanoids Species Pack

07 Dec 2017
  • 10 Humanoid portraits
  • Humanoid ship-set models inspired by classic western sci-fi
  • A pre-scripted empire, the Fanatic Authoritarian/Materialist Voor Technocracy.
  • A Humanoid cityscape art.
  • 3 alternative VIR voiceover sets: Dignified xenophile, Disciplined militarist, and Ruthless materialist.
  • 3 remixed tracks of classic Stellaris songs
Paradox / Steam


E-books are books written based on the Stellaris universe. These, however, do not impact the actual game in any way whatsoever.

Title Release Date Quick Description Links
  • Digital Collector's Book
  • (part of Galaxy Edition)
09 May 2016
  • This 130-page book on Stellaris's aesthetic design includes a collection of game art unavailable anywhere else. Learn of the thoughts and research that drove these designs, the problems encountered along the way, and the ways they were finally brought to life.
Paradox / Steam
Infinite Frontiers

Stellaris: Infinite Frontiers

09 May 2016 Written by Steven Savile: An original novel based on the science-fiction setting of Paradox's Stellaris.
  • When the Commonwealth of Man receives proof that they are not alone in the universe, humanity is divided: should our species seek salvation in potential friends among the stars, or prepare for an inevitable war? What discoveries await the colony ship as they journey into the unknown to find the source of a mysterious alien signal?
Paradox / Steam

File names

List of DLC files in the Stellaris/dlc folder (bold names are expansions):


  1. Forum, "A new patching and expansion policy for Paradox Development Studio", 2011-09-26
  2. Forum, Stellaris: Horizon Signal, 2016-12-05 | DLC is added automatically to the base game
  3. Forum, Update 1.1 (Clarke) to include Sign-up Campaign content for free, 2016-06-01
  4. Forum, Paradox Announces Digital Anniversary Edition, 2017-05-09 | Creatures of the Void was originally available as part of the pre-order bonus (also including Stellaris themed ringtones).