This article is considered accurate for the current version (2.4) of the game.
The launcher's DLC management section.
Downloadable content (DLC) is content built by Paradox Development Studio (PDS) as an extension or add-on to Stellaris. They are modular in nature, 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.
Note: Further details on a specific title may be available by clicking on its banner or icon.
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.
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.
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).
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.
New music: Featuring 5 new tracks (~24 minutes) from composer Andreas Waldetoft.
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: Featuring 3 new tracks (~14 minutes) from composer Andreas Waldetoft for a pleasurable planet-shattering expedition.
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.
New music: Featuring 3 new tracks (~13 minutes) from composer Meyer.
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!
New music: Featuring 4 new tracks (~16 minutes) from composer Meyer.
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.
New music: Featuring 4 new tracks (~17 minutes) from composer Meyer.
Flavor packs add new events, event pictures and unit models often specific to particular part of the game.
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.
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?
List of DLC files in the /Stellaris/dlc folder (bold names are expansions):