- 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
- September 2026
- 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 AnnouncementsExperimental PatchChangelogFixed bug with the orbits of other star systems appearing all the timeFixed bug with other star system planets being in the wrong positionAge of information: real life army sizes added for a few countriesAge of information: added more leadersSurvey Efficiency nerfedEarth restoration situation/decision addedBio/atmosformers give planetary health regenPerformance optimizationsOnly 1 war...
- Community AnnouncementsExperimental 0.19.1 Update 2Planet ModdingYou can now modify planets. Be careful with this. TutorialMod now includes a new planet called Aurelia that orbits Earth like in the picture. It has no regions by default but you can add them.Event ChangesThe updated event format gives modders more control over when events happen, who they affect, and whether they display a popup.Condition: Requirements that must be met for the ev...
- Community AnnouncementsExperimental 0.19.1 UpdateChangelogNotifications for allied war declarationsNotifications for nuclear strikes against friendliesOccupation now consumes a certain amount of combat width of troops based on siege abilityBuffed space weapons against surface targetsNew default unit/template: autocannon destroyer and orbital bombardment forceSpaceports made significantly cheaper and more profitableAI naval and space aggressio...
- Community AnnouncementsExperimental 0.19.1Event Logic UpdateThis update is mainly for modders, there is new event logic.New event logic features:Nested logical conditions and effectsConditional rewardsScript variables (things like organization count, # of wars, military size, etc.)I am pushing this to experimental early because I want to give modders time to fix their mods. There will likely be more stuff coming through this. I also mo...
- Community Announcements0.19 PatchChangelogFixed bug with camera focus on space nodesFixed bug with countries creating colonial nations on Earth despite their capital being located thereFixed Controls not savingAI hegemony subjects can not declare war
- Community AnnouncementsUpdate 0.19Hello everyone, the new update is out. Here are the changes:OrganizationsGeneral ChangesNon-alliance organizations no longer call all their members into wars.Economic Unions now allow you to build on allies' territories, and export/import resources from them for freeMilitary alliances now allow you to recruit units in allied territoryGermany can build buildings in any EU member state.HegemonyNe...
- Mods indexed
- 107
- 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.
- More FormablesMore nations to form, more flavor, more situations, more missions, more content, more fixes. Vanilla+ experience. Achievements compatible. Changes: List of changed tags has become to big to post it here. Check list of changes. Fixes for United Colonies, Thule, Jamaica, Turkey, Peru, Belarus, Aust...2.8k downloads
- 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...2.6k 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....1.8k 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...1.0k 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 mods985 downloads
- More BuildingsNew buildings: Polymer Industry (oil -> Consumer Goods) Methane Industry (methane -> Energy) Solar Array (sunlight -> Energy) Electromagnetic Catapult (no atmosphere -> buffs) Electrolysis Industry (water -> buffs) Trade Port (Space Station -> commerce) Radiation Treatment Center (radiation -> bu...824 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...816 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...664 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...530 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...515 downloads
- Revamped PlanetsI have bad news about this mod i feel very little motivation to work on it and due to recent updates to the game alot of my flags have been destroyed. This mod is still functional but dont expect it to get updates any time soon. If you wish to take over this mod feel free. Do you feel that our su...513 downloads
- Age Of Kings 1444AGE 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 b...512 downloads
- A Blank Scenarioa blank scenario with no countries, use for whatever you want443 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...432 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...430 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...415 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...413 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...376 downloads
- Blank More Detailed WorldA bigger world with more regions for custom scenarios.363 downloads
- Lupine Mod (New Race and Earth Reworks)This mod features an attempt at modding in a new species into the game on Sigma Draconis I, as well as a variety of reworks: YOU MUST PLAY ON THE EXPERIMENTAL BUILD IN ORDER FOR THIS MOD TO FUNCTION PROPERLY!!! List of notable changes (Sigma Draconis I) The Lupine Empire has been implemented. The...352 downloads
- The New Order: Last Days of EarthTNO but it's 2062320 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...314 downloads
- 2032 - After War [Scenario] (Currently Outdated)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,...300 downloads
- 2092 start no extrasolar coloniesHello all a simple mod that removes all colonies from the Sol system making everyone start from Earth.245 downloads
Browse all 107 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.