- Simulation
- Strategy
Game
Stellaris
Stellaris is a real-time 4X grand strategy game set in a procedurally generated galaxy. Players control an interstellar civilization, exploring star systems connected by hyperlane networks, colonizing habitable worlds, and managing their empire's economy across resources like energy, minerals, and alloys. The game emphasizes empire customization through species traits, ethics, government types, and civics that shape both aesthetics and mechanics. Gameplay progresses through diplomacy, trade, and warfare with other civilizations, while mid-game and late-game galactic crises introduce escalating
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
About Stellaris
- Released
- May 2016
- Developer
- Paradox Development Studio
- Publishers
- Paradox Interactive, DMM GAMES
- Engine
- Clausewitz Engine
- Platforms
- Xbox Series X|S · PlayStation 4 · Linux · PC (Microsoft Windows) · PlayStation 5 · Mac · Xbox One
Where to get it
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
- Mods9.0kA mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
- Frameworks2A framework is modding infrastructure rather than content: an API, injector or utility that other mods run on top of, or that helps you install, patch or manage them.
From the developers
Official announcements, newest first. Posted on Steam.
- Community AnnouncementsVIR Vinyl Figure LIMITED EDITION | Makeship x StellarisThis VIR spent millions of playthroughs helping empires rise — and decided Earth was worth the trip.No demands, no housing needed, no secret bid for power.Just an 8.5cm advisor ready to move in.Available now.
- Community AnnouncementsStellaris 4.5 'Cygnus' Open Beta Update 4 (e6fd)by EladrinHello everyone! We've got a couple more fixes in today's 4.5 Open Beta update: Stellaris 4.5 'Cygnus' Open Beta Update 4BugfixFixed Precursor dig sites (Vultaum, Yuht, First League, Irassian, Cybrex) not appearing when surveying, and the Fear of the Dark origin's hostile empire failing to spawn.Fixed numerous other events, decisions, and buildings silently failing or producing error...
- Community AnnouncementsStellaris 4.5 'Cygnus' Open Beta Update 3 (aa56)by EladrinHappy Friday! We've updated the stellaris_test_4.5 branch again today, and added a rollback branch (stellaris_test_4.5_rollback) just in case, since this one modified a few hundred events. Stellaris 4.5 'Cygnus' Open Beta Update 3 Release NotesBalanceThe Stellar Cannon is now a Tier 3 tech, and requires Wormhole Stabilization and UV Lasers.BugfixFixed a wide-ranging regression that...
- Community AnnouncementsStellaris 4.4.6 hotfix released (fdde)by EladrinWe've just deployed a hotfix that resolves an issue introduced in 4.4.5 where Science Ships using automation would get lost forever when exploring Astral Rifts. It should now be available on Steam, GOG, and MS Store.4.4.6 ‘Pegasus’ Hotfix Release NotesBugfixFixed science ships being lost permanently when set to automatically explore Astral Rifts. Previously an automated science ship...
- Community AnnouncementsStellaris Dev Diary #428 - 4.5 ‘Cygnus’by EladrinHello everyone!Earlier this week we released the Stellaris 4.4.5 ‘Pegasus’ Update with the following changes:4.4.5 ‘Pegasus’ Patch Release NotesFeatureAdded a Resource Abundance slider in galaxy settings.This slider ranges from “Scarce” to x5 in 0.25 increments, where x1 is approximately the resource abundance of v4.3 and x5 is essentially 4.4’s “resources everywhere”.The default is x...
- Community AnnouncementsStellaris 4.5 'Cygnus' Open Beta updated (bfcc)Hello everyone! QA's tests on the 4.5 'Cygnus' Open Beta 2 update went faster than expected, and we felt that we had no real reason to hold the update until tomorrow. We've updated the stellaris_test_4.5 branch with the following changes: 4.5 ‘Cygnus’ Open Beta 2 Release NotesThe 4.5 Open Beta now also includes all changes from 4.4.5. FeaturePop groups are no longer divided by Ethics or Factio...
- Mods indexed
- 9.0k
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
of 36.6k on Steam Workshop
Most downloaded
Measured from the source's own counts, summed across every release.
- UI Overhaul DynamicFor 4.4 ✔️ 📜 Changelog 📜Beta VersionOlder Versions4.3.74.2.4Paradox Mods ⛓️ Compatibility Patches ⛓️🏗️ Submods 🏗️Can be used in multiplayer, even with players who doesn't use it! 🛠️ Interface Modified 🛠️ This mod is specifically tailored towards 1920 × 1080 and 2560 × 1440, with some support for...1.8M downloads
- Gigastructural Engineering & More (4.4)Do you like megastructures? I sure do! This mod aims to expand on the concept of megastructures by adding more megastructures you can build, with a wide range of effects, and sizes ranging from large space stations to system-spanning constructs. It also adds 4 optional crises to match the power o...988.1k downloads
- Planetary DiversityStellaris: 4.4.* Not Achievement Friendly PD Discord Server Other Planetary Diversity Mods Unique Worlds More Arcologies Ascension Worlds Vanilla Replacement Art City Sets Planet View Gaia Worlds Exotic Worlds PD 4.3.* PD 4.2.* PD 4.1.* Other old versions are available; please check out my worksh...934.8k downloads
- Real Space 4.0Real Space v 4.0.10 This version is compatible with patch 4.4.6 Pegasus. This mod does not fundamentally change the game mechanics, creating the scenery for Stellaris more diverse and atmospheric. So, there is a list of what the mod performs: New stellar classes were added: O Class – the most bri...864.6k downloads
- NSC3Having trouble with NSC? Click here for troubleshooting steps. June 28, 2026 - Season 1 - Update 26 (Mod Version 1.0.27) New Save Game is Not Required New & Updated Features Removed all tech requirements from all NSC Exploration aux components - they are all now available at game start. Bug Fixes...861.8k downloads
- More Events ModCOMPATIBLE with Stellaris 4.4.* Link to 4.3 version Link to Standalone Portrait Mod Are you looking for more action and interesting events to show up while you are doing your day to day enslaving and conquering business? If, like us, you find the mid to late game a little lacking of interesting d...765.8k downloads
- UI Overhaul 1080p Plus [Depricated]Overhauls the UI to scale for 1080p resolution. Expands most windows to minimize the amount of scrolling needed while showing as much information as possible. Lead and Current Author : Maple Original Uploader: Tyrus Non-Steam Version Custom Ship Designer Expanded Outliner Ironman/Achievement Comp...764.3k downloads
- !!!Universal Resource Patch [2.4+]Updated for 4.*.*. Backwards compatible with 3.* and most of 2.*. Patch to display the added strategic resources from different mods. For Stellaris +2.4.* Thanks to the new launcher the order in which mods are loaded is changed, if you have trouble getting the mod to work try moving it to the bot...668.8k downloads
- Beautiful Universe v2.0This mod changes vanilla skyboxes and brings more beauty to the game. As references were used NASA photos, EVE Online skyboxes, and various digital art. Compatibility: - There may be issues with mods that add new star classes. Also try mods changing galaxy background: Inevitable Impact Nearby Exp...639.1k downloads
- Guilli's Planet Modifiers and FeaturesGuilli's Planet Modifiers For version 4.4+ of the game. Goes well with my: Guilli's Technologies mod: Guilli's Exploration and Expansion mod: 4.3 version: ----- A big content expansion mod focusing on Planetary Modifiers. With hundreds of modifiers and lots of content that interacts with them. DL...555.3k downloads
- ! Reworked Advanced AscensionAdapting to Stellaris 4.4 This mod is to add new advanced ascensions based on vanilla ascensions 30 new Advanced Ascensions The upper limit of the ascension slot has been increased, which requires UOD series for UI support Future development of this MOD has been taken over by Kasako Legacy versio...527.4k downloads
- ! Core Framework of KasakoCurrent mod version for mod setting panel The basic framework of the sub-function of Infinite System Independent function (see detailed introduction) Legacy version of Kasako's mods For Japanese Translation Mods supported by the menu are just for the convenience of opening and setting, please do...500.1k downloads
- Machine ShipsetThe Automated Dreadnought guardian is a beautiful ship. Which makes it a shame that it's one of a kind and that there aren't many other ships in its style. Until now! Behold machine ships, a fully sectioned shipset! Machine Ships adds a new shipset in the stellaris game style. Rather than pull fr...499.6k downloads
- Amazing Space BattlesCompatible with Stellaris V4+ and V3.14 This Giant mod combines my previous graphical mods + far more, in order to completely improve the graphics of Stellaris space battles. It improves the graphics of almost EVERY weapon in the game- adding lots of new custom effects (while staying true to vann...484.1k downloads
- Ethics and Civics Classic (Primitive Nomad Update)Now Has Megacorp Civics + Early Space Age Origin! (If Linux User: Use Proton GE) *Niche bugs may exist, please report them on discord Hello everyone! Joakim is sadly retiring from the modding scene. I would like to thank him for maintaining/updating the mod ever since Petruxa left, he was carryin...453.0k downloads
- ! Dark Blue UI Remake<UI Overhaul Dynamic is required, sort it above DBUI.> Translucent + Trimmed UI style Designed as an addon to UI Overhaul Dynamic Blue tinged cyberpunk visual style New UI graphics and layout changes Some additional new features Legacy version of last major update Universal Patch for compatibilit...448.9k downloads
- Tiny Outliner v2Compatible with version v3.8.x. **THIS MOD WILL NOT UPDATE ANYMORE.** YOU CAN USE SOME ALTERNATIVES LIKE:442.5k downloads
- Planetary Diversity - Unique WorldsStellaris: 4.4.* Not Achievement Friendly PD Discord Server Unique Worlds This mod is standalone and does not require Planetary Diversity to function. It adds additional planets, scaling based on the size of your galaxy. In a huge galaxy, you will encounter all of them. Each planet will spawn onl...439.7k downloads
- United Fleet Shipsetdownscale patch compatibilty : 本MOD是Warship girls R and MIST species的船模MOD。但也可以独立运行 订阅此MOD后联合舰队天灾将会替换为该模型 This ship models mod is for Warship girls R and MIST species. But it can run independently 如果您喜欢这个MOD，请务必为我收藏和点赞 United Fleet News 1.Subscribe to Mobile Shipyard now 2.Now NSC is supported 3....433.4k downloads
- ! Better Performance & UtilitiesCurrent version for Legacy version of Kasako's mods Up to 75% increase in game fluency in later game New pop growth control method (disabled by default) Automatic demotion function Express manual pop migration method Reduce the number of ships Prohibit species hybridization Stop AI from modifying...431.2k downloads
- Plentiful Traditions 4.4.xWelcome to Plentiful Traditions, it wasn't always easy to implement everything Birdy made for 1.9 into 2.0 and further. NOW for the 4.x Please report bugs! :) Works with: Extra perks (addon) Extra perks (Order) Extra Districts (addon) Extra perk spots Civics Advanced Ascension Languages: German (...427.4k downloads
- Improved Space Battles [Graphics]Improved Space Battles - expand your mid / late game with 5 new super-capital class ships, over 50 new technologies and 11 doomsday weapons - including planet destroying, star system destroying and anti-fleet super-weapons. Initial Compatibility Hotfix for 2.1. Sincere apologies for going MIA! Im...426.4k downloads
- Dynamic Political EventsОписание мода на русском языке (Russian Description) Descrição do Mod em Português (Portuguese Description) Chinese Version Stellaris empires lack life. It often does not feel like one is leading a stellar empire with real citizens whose opinions matter. Imagine if we (us Humans) suddenly weren’t...419.7k downloads
- !!Universal Modifier Patch (4.4.*)Fix the modifier issue after the 2.2.6 update. With the release of 2.2.6, once again, Paradox fools buried countless of mods and modders into the abyss. This fix mod brings the missing modifiers that existed in 2.2.0 to 2.2.5 back to life. (via overweight 00_common_categories.txt load order to ma...414.8k downloads
Browse all 9.0k Stellaris mods Sortable by downloads, rating and date.
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Why Stellaris mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host Stellaris mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.