Mods

• MMore Formablesby ZAXAR_v13More 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 downloadsupdated 27 d ago
• BBetter 2025by GuessWhoThis 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 downloadsupdated 5 mo ago
• CCold War: 1949by 76561199018017269The 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 downloadsupdated 6 mo ago
• EExtended Tech Tree - Born Too Early, Born Too Late (WIP)by CzechoslovakiaExtended 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 downloadsupdated 2 mo ago
• EExperimental Flag Packby errrrrrrrrrwhatA 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 downloadsupdated 5 mo ago
• MMore Buildingsby ZAXAR_v13New 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 downloadsupdated 2 mo ago
• TThe Expanse 2110by BeanGalaxy0997"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 downloadsupdated 3 mo ago
• MMillenium Dawn: Year 2000by supercid87Made 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 downloadsupdated 4 mo ago
• KKaiserreich: The Twilight Struggleby 76561199828139521Kaiserreich: 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 downloadsupdated 4 mo ago
• HHYPERWAR - Finno-Korean Hyperwar 7625 BCby ThepersonwithoutanynameFor 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 downloadsupdated 5 mo ago
• RRevamped Planetsby 76561199652906461I 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 downloadsupdated 4 mo ago
• AAge Of Kings 1444by P_eAGE 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 downloadsupdated 20 d ago
• AA Blank Scenarioby 76561198865643666a blank scenario with no countries, use for whatever you want443 downloadsupdated 6 mo ago
• TThe Refugeby CzechoslovakiaTHE 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 downloadsupdated 4 mo ago
• TThe End of Historyby UpmostTJjnrAn 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 downloadsupdated 5 mo ago
• EEnhanced Economic Start - AI Boosterby ThepersonwithoutanynameThis 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 downloadsupdated 5 mo ago
• MMegacampaignby 76561199077329823The 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 downloadsupdated 4 mo ago
• 22615 - War of the Worldsby BugsesJust 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 downloadsupdated 20 mo ago
• BBlank More Detailed Worldby P_eA bigger world with more regions for custom scenarios.363 downloadsupdated 3 mo ago
• LLupine Mod (New Race and Earth Reworks)by MusketThis 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 downloadsupdated 4 mo ago
• TThe New Order: Last Days of Earthby .kiwiTNO but it's 2062320 downloadsupdated 5 mo ago
• RReal Robot Mechaby Rambo5"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 downloadsupdated 3 mo ago
• 22032 - After War [Scenario] (Currently Outdated)by JayKobius04Hello 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 downloadsupdated 4 mo ago
• 22092 start no extrasolar coloniesby Sierra182Hello all a simple mod that removes all colonies from the Sol system making everyone start from Earth.245 downloadsupdated 18 mo ago
• SSelfish Determinationby CzechoslovakiaSelfish 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...232 downloadsupdated 4 mo ago
• AA Familiar Worldby 76561199018017269A 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...230 downloadsupdated 6 mo ago
• XXenophiliaThis is the Xenophilia mod. The mod adds multiple new species on different planets in different star systems. The mod also adds many new regions, some new culture traits and such. This is my first mod for this game i really hope you enjoy it. 5 New Species probably over 100 new regions (you can c...226 downloadsupdated 20 d ago
• TThe Man in the High Castleby ArabianPirateGP3What if the Allies lost World War II, and the world was split between two rival totalitarian superpowers? Step into the alternate 1962 of Philip K. Dick’s terrifying vision, completely adapted for the grand strategy sandbox of Solar Nations 2. The Greater Germanic Reich and the Empire of Greater...216 downloadsupdated 5 mo ago
• OOlympus Modding | Better 90sby 76561199000182896Olympus modding | 2092- Major Changes to the 2092 scenario - HRE formable by Belgium, austria, switzerland, slovenia, czechia, germany, bavaria, north germany, netherlands Greater moravia Formable by Hungary, Czechia, Czechoslovakia Tsardom of Russia Formable by Poland, Russia, finnland, the stan...206 downloadsupdated 5 mo ago
• KKuromiku Insanityby 76561198431360115!!! I kinda lost the interest in this game, so I don't know if there will be anymore updates for this mod. If you are interested in continuing this mod message me here on Steam or on Discord. !!! Earth and humanity were devastated by apocalyptic event known as The Last War. What survived of human...199 downloadsupdated 5 mo ago
• AAge of Hatredby Luigi IV von LiminglyAGE OF HATRED In 1962 the Cuban Missile Crisis had begun and unfortunately it would also be the start of a new age. What many believed to be a simply stand off between the former Soviet Union and United States super powers, was in turn made into a multi month long tension building contest. With l...194 downloadsupdated 3 mo ago
• IIron Sky 2025by MesererIn 1945, the remnants of the defeated Nazi regime escaped to the dark side of the Moon, establishing the secret colony of Neomenia and the massive "Black Sun" fortress. By 2025, generations have been raised on extreme propaganda, but the colony is now on the brink of collapse due to depleted reso...181 downloadsupdated 5 mo ago
• KKaiserreich Mod [BETA]by LolgamerTHIS IS UNFINISHED Pretty much just wanted the kaiserreich Borders in the mod, will continue to work on it later. Feel free to modify the mod however You can also steal the flags if you want 0.1 - Added a bunch of flags 0.2 - Europe is mostly finished 0.3 USA is done in terms of pop and resources175 downloadsupdated 4 mo ago
• WWorld War Twoby 76561199237923719WW2 Version Of Solar Nations II |Recommended For Multiplayer Use| |NOT FINISHED YET| In this mod you can play as any nation from WW2 in 1936 this includes - The Axis Powers (Germany, Italy, Japan) - The Allies (British Empire, France, United States, and the Soviet Union) - Various other nations!...175 downloadsupdated 4 mo ago
• RReal Robot Mecha: Combined Arms Editionby Rambo5"Deploy the next generation of warfare." Real Robot Mecha: Combined Arms Edition 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, Ro...171 downloadsupdated 3 mo ago
• CComrade's Mod AdditionsThis has all of the things i add to my mods and will be updated in accordance with other mods (or whenever i add something new). It is required for Xenophilia. Use for whatever you want to just make sure to link this steam m\page so others can also use it.168 downloadsupdated 15 d ago
• 11984by .kiwi1984 George Orwell159 downloadsupdated 9 mo ago
• TTotal Global Collapseby 76561198395358051After a major global conflict, the world has been covered in nuclear fire, and rising waters. Antarctica was bombed by a small coalition of nations for the purpose of settling it and extracting the resources, at the cost of drastically raising sea levels and killing millions. This is a non seriou...157 downloadsupdated 3 mo ago
• TThe Roaring 90sby Алверим ВераманоBRICS+ became exactly what the West Feared by 2031, a Collection of Nations so powerful and united in their desires of cooperation and healthy competition, that Western powers lost all power over former colonies and could no longer compete with big players such as China and Russia. 2037 began the...155 downloadsupdated 20 mo ago
• EEquestria at War (WIP)by 76561198803402857A work in progress total conversion, featuring one of the best mods made for Hearts of Iron IV. If you guys find any bugs or have any suggestions, please let me know, thanks!147 downloadsupdated 4 mo ago
• IImperium Solby 76561199023493094You are the new Emperor of The Imperium of Earth. Will you lead the Imperium to a bright future are bring it to Ruin?146 downloadsupdated 11 mo ago
• MMOLOCH fixby ZAXAR_v13Fixed robotic trait so MOLOCH can now colonize and recruit due to another cultures. You can turn it on midgame, so need to preload. Compatible with any scenario/mod, cross version and saves.143 downloadsupdated 4 mo ago
• WWorld War Zero [SN2]by 76561198395358051This is a port of the semi unknown Hearts of Iron 4 mod, World War Zero to Solar Nations 2. WW0 is made by Temuzu and a small team of modders and testers. You can play WW0 here: Roadmap for this port: - Descriptions for each interesting nation. - Extra-terran and extra-solar nations to provide fr...131 downloadsupdated 3 mo ago
• NNew HorizonsNew Horizons is a tech tree overhaul mod that extends the Solar Nations II tech tree into the past while expanding upon the present and the future. Given the scope of the mod, this project is still under heavy development! Unfortuantely, this also means New Horizons will be incompatible with any...131 downloadsupdated 26 d ago
• RRoad to 26by 76561198877422626Complete Game Overhaul leading Humanity into the 26th Century. --- Known Issues Water Collection has unknown Icon for Bonus Water Rations. --- Implemented New Tech (Water Collection) New Resources (Water & Water Rations) Changed Earth Ocean Provinces Changed Ceres & Mercury Deposits Changed Habit...130 downloadsupdated 3 mo ago
• VVirtualisby CzechoslovakiaVirtualis "A virtual paradise, away from the hardships of reality." Note: This mod works in any scenario, with any other mod that doesn't touch the tech tree! Virtualis attempts to integrate the needs and demands of a society with mind uploading and virtual life. No more is the cyberspace merely...117 downloadsupdated 4 mo ago
• TThe War of the Worlds - 1898by 76561198323677435The Martians are playable and technologically massively superior. Have fun. For whatever reason I am not able to update this mod.111 downloadsupdated 4 mo ago
• MModern World-Ish (No Colonies)by 76561198848237090105 downloadsupdated 12 mo ago

107 mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.