- Simulation
- Strategy
- Early Access
Game
Solar Nations 2
Rise beyond humanity's cradle and begin the long struggle to dominate the solar system. Lead a nation through political turmoil, technological upheaval, and interplanetary conflict as the future of civilization unfolds among the planets. Build colonies on distant worlds, develop revolutionary technologies, and decide whether humanity will unite among the stars… or destroy itself in nuclear fire.
In this Grand Strategy game, you take control of the Solar System's Great Powers in 2092 and weather the storm of change as you navigate the uncertain waters of the future. Control the greatest military forces in the world and wage wars on an epic scale: outer space is yours to conquer!
About Solar Nations 2
- Released
- January 2025
- Developer
- Flomgus Games
- Engine
- Unreal Engine 5
- Platforms
- PC (Microsoft Windows)
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.
From the developers
Official announcements, newest first. Posted on Steam.
- Community AnnouncementsSome BugfixesFixed bug where multiplayer formables didn't work Fixed Imaginarium Flag
- Community AnnouncementsBugfix: AI colonizationAI colonization behavior fixed, AI should now colonize more often
- Community Announcements0.18 2025 FixSome black magic replaced the 0.18 2025 scenario with the 0.17 one. It has been fixed. I also increased the size of the mission tree screen
- Community AnnouncementsUpdate 0.18Hello everyone, here is the full changelog for the 0.18 update.Mission TreesMission Trees have been added to some situations, and present new challenges for some nations to do during the game. The idea of mission trees is to incentivize and direct the player without forcing them to do a specific course of action, so they are still very open ended, but provide small or large bonuses based on the...
- Community AnnouncementsUpdate 0.18: More DetailsI made a video with some more details on update 0.18 including some of the mission trees I did not talk about in the previous announcement:
- Community AnnouncementsAugust 5: Update 0.18Hello everyone, I know there hasn't been an update in a little while and today I am going to explain why. I have been working on some cool stuff recently that has been very time consuming but I am glad to say that it is finally nearly ready for the main branch.0.18 is going to be live on August 5, and along with all of the stuff currently in the Experimental branch there is some new things that...
- Mods indexed
- 97
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
Most downloaded
Measured from the source's own counts, summed across every release.
- Better 2025This mod corrects most of the errors in the standard 2025 scenario. It updates the laws of each country, their populations, age structures, and, in some cases, the development and education levels of the provinces. The data is as accurate as possible, but I’d be happy to correct any errors I may...2.4k downloads
- More FormablesMore nations to form, more flavor. Vanilla+ experience. Achievements compatible. Changes: List of changes become to big to post it here. Check list of changes. Fixes for United Colonies, Thule, Jamaica, Turkey, Peru, Belarus, Austria, Anacap, Australia. New: A big flag pack. New situations / miss...2.3k downloads
- Cold War: 1949The world is still reeling from the devastation and horrors of the German Reich, with little chance for respite. Tensions are rising as Western capitalist powers and Eastern communism move toward direct confrontation, each determined to prove that its ideology will shape the future of the world....1.6k downloads
- Experimental Flag PackA collection of additional flags, real, proposed, fictional and fantastical, additional flags will be added periodically all flags are in 533x300 format feel free to incorporate any of these flags into your own mods784 downloads
- The Expanse 2110"Doors and corners, kid. That's where they get you." -Detective Miller. Eighteen years have passed since the independence of Mars from Earth, and both sides have become locked in a bitter race for control of the rich resources of the solar system. All the while earth teeters on the verge of an ma...720 downloads
- Extended Tech Tree - Born Too Early, Born Too Late (WIP)Extended Tech Tree - Born Too Early, Born Too Late (WIP) "Born too early to explore the stars, born too late to explore the Earth...?" Note: This mod is a heavy WIP. However, it should work in any scenario, with any other mod that doesn't touch the tech tree. Born Too Early, Born Too Late (BTEBTL...678 downloads
- More BuildingsFor version 0.18.0 and higher. New buildings: Polymer Industry (oil -> Consumer Goods) Methane Industry (Methane -> Energy) Solar Array (sunlight -> Energy) Electromagnetic Catapult (no atmosphere -> buffs) Electrolysis Industry (water -> buffs) Works with scripts, compatible with any scenario/mo...564 downloads
- HYPERWAR - Finno-Korean Hyperwar 7625 BCFor many thousands of years, the world has been at relative peace. The might of the twin superpowers ensured a world order most prosperous for them. But as all things do with time, this began to unravel, and the rot beneath emerged. As the Fengol Khaganate and Hwan Empire seek one final war to pu...476 downloads
- Revamped PlanetsDo you feel that our supreme dictator (Bugses) gave some of the planets and objects in the solar system more love than others? Well if you do then this mod is for you. This mod aims to rework/improve more forgotten planets in the solar system, by adding new regions, giving them accurate IAU names...458 downloads
- Millenium Dawn: Year 2000Made on 0.17. (Hopefully the raw population/pyramid data can be preserved for future versions.) Millennium Dawn: Year 2000 completely overhauls Solar Nations 2's starting scenario, replacing the default setup with a historically accurate landscape based on the year 2000. -Better 2025 used as a ba...456 downloads
- A Blank Scenarioa blank scenario with no countries, use for whatever you want415 downloads
- The End of HistoryAn alternate history mod that dares to ask the question: What if Germany won WW2? The lore is somewhere in-between the TNO mod for Hearts of Iron 4 and the novel Fatherland, with some contributions of my own. The starting date is 2000/01/01. Aside from a single space station, all starting regions...413 downloads
- Kaiserreich: The Twilight StruggleKaiserreich: The Twilight Struggle is a cold war mod based on the Kaiserreich World settled in 1960, 15 years after the end of the Second Weltkrieg, Germany rules Europe alone under the Shogunate, Russia is divided once after it’s failure against a 2nd German victory in the east, and the Entente...399 downloads
- Enhanced Economic Start - AI BoosterThis mod aims to increase AI difficulty and competence via increasing their economies. The AI of smaller nations, especially low population spacer nations, often will fail to "kickstart" their economies. They will either waste their money or not spend it at all, being left with incomes too meager...396 downloads
- 2615 - War of the WorldsJust a little scenario I put together to demonstrate the capabilities of the Scenario Editor. DARK CENTURY After the chaos of the UNIFICATION WAR the balance of power across the Solar System has been altered irrevocably. Earth, once the seat of power, is now a fractured and broken mess, while Mar...375 downloads
- The RefugeTHE REFUGE Adds a tiny nation on Triton named "The Refuge", a frontier colony from lunar settlers dissatisfied with the lunar way of life. Meant as an "exile" start, more so than the Saturnian League is supposed to be. Good luck. What's changed New nation on Triton New regions (and terrains) on T...370 downloads
- MegacampaignThe Year is 1500. Another 525 years before man can even dream of colonising the stars. The Turks have breached Constantinople and continued their offensive into Hungary and the Wider Balkans. Spain has a viable settlement at the edge of the earth, while the Yuan and Chagatai continue to lick thei...346 downloads
- Age Of Kings 1444 (ALPHA)AGE OF KINGS — 1444 Grand Campaign Begin on 11 November 1444, days after the Crusade of Varna lies broken. Guide any of ~200 hand-placed historical nations from the medieval world through the Age of Discovery, Reformation, Absolutism, Revolution and Industry — and onward into the space age of the...306 downloads
- 2032 - After War [Scenario]Hello there! This is my first mod, my first Scenario, for this Game. I am not an English Native Speaker, so i am sorry for all Language Mistakes. The Scenario features; - Approximate Population Numbers for 2032 - Realistic Alternative History - An interesting Difficulty The Scenario: It is 2032,...294 downloads
- The New Order: Last Days of EarthTNO but it's 2062290 downloads
- 2092 start no extrasolar coloniesHello all a simple mod that removes all colonies from the Sol system making everyone start from Earth.241 downloads
- A Familiar WorldA Modified Modern Day Scenario. This scenario was made and tested in beta 0.17 The main idea is to make it less likely for every game to be America and China conquer everything whether or not that is the result is not fully tested CHANGES America has been broken up into 8 Nations Part of the “Uni...221 downloads
- Real Robot Mecha"Deploy the next generation of warfare." Real Robot Mecha introduces fully customizable military mecha into Solar Nations II through the Unit Designer. Inspired by decades of Real Robot media—including Mobile Suit Gundam, Full Metal Panic!, Heavy Gear, Jovian Chronicles, Robotech/Macross, and man...212 downloads
- Selfish DeterminationSelfish Determination Thought I lost everything? Turns out all I lost were my chains. Gives every conceivable region independence in the 2092 start, from separatist groups to subnational divisions to planetary colonies. Features: 349 new nations (317 on Earth, 7 on the Moon, 9 on Mars, 2 on Venus...204 downloads
Browse all 97 Solar Nations 2 mods Sortable by downloads, rating and date.
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Why Solar Nations 2 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 Solar Nations 2 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.