ModsGalactic Civilizations IV
Galactic Civilizations IV mods
A 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.
1,740 mods, most downloaded first · newest update 1 Oct 2026
All Ships903Civilizations525Medium Ships185Tiny Ships162Large Ships147Small Ships143Huge Ships142All Phenotypes119Ship Styles100Cargo Ships71Humanoid56Starbases52Cybernetic19
- Klingon Empireby <CDN>Ellirium113Description: A faction of powerful warriors dedicated to honor and conquest. Notes: The idea behind this mod is to play at higher levels of expertise, bringing an authentic Klingon challenge. The citizens and leaders are more capable in all attributes. Klingons have higher loyalty. -Class 30 Klin...311 downloadsupdated 16 mo ago
- Human Systems Allianceby ArdoniaThe Human Systems Alliance, a formidable and reletive newcomer to the galactic community, touts unparalleled strength and versatility. Having survived the Reaper War,Reaper occupation and purge of Earth as well as the destruction of the Reapers and mass relay system the human survivors seeks to r...310 downloadsupdated 2 y ago
- Arc Expansion Styleby OmnibusArc Expansion Style310 downloadsupdated 19 mo ago
- Imperium of Man Styleby The Pine Cone KidImperium of Man Style309 downloadsupdated 2 y ago
- Barbaross Titanby Omnibus309 downloadsupdated 19 mo ago
- Space Orks of Evil Sunzby davidevilOrks generate a psychic field that makes their ramshackle technology work properly or more effectively (for example, vehicles painted red are faster, simply because the Orks believe it to be so).308 downloadsupdated 2 y ago
- Imperail Klingon Styleby azkorImperail Klingon Style308 downloadsupdated 22 mo ago
- STAR FLEETby valasharPlace civilization description here.307 downloadsupdated 3 y ago
- Okinawaby IllaunaThe Okinawa-class is a type of Federation Starship.304 downloadsupdated 3 y ago
- United Federation of Planetsby OderintTo boldy go where no man has gone before.304 downloadsupdated 20 mo ago
- Scryveby CouncilWorkerScryve, a formidable faction in the galactic race, are centaur-like beings driven by an unwavering mission to enforce order - even at the cost of genocide.303 downloadsupdated 3 y ago
- EcoSynergy Collectiveby navi_tThe EcoSynergy Collective, a harmonious species reliant on their collective efforts, innovating to live in complete harmony with nature, embodying unwavering unity and traditional values.302 downloadsupdated 3 y ago
- Dread Lords Alliance Styleby CouncilWorkerDread Lords Alliance Style, the last of the Dread Lords Morandruc has created a new breed of Dread Lord Ship to strike fear into all that witness them. (So I took my DLA ships from GC3 and painfully re-created them in GC4... A work in progress as some vessels need doing and a few changes need to...302 downloadsupdated 3 y ago
- Odin Fighterbomberby Omnibus300 downloadsupdated 23 mo ago
- M.S.S. Dragon Waspby VoxMelnibone Bomber.298 downloadsupdated 3 y ago
- K't'ingaby <CDN>Ellirium113Klingon battlecruiser.298 downloadsupdated 23 mo ago
- Starfury Fighter Iby OmnibusEarth Allaince Starfury Fighter298 downloadsupdated 9 mo ago
- Vor'Kangby <CDN>Ellirium113Klingon Battlecruiser.297 downloadsupdated 23 mo ago
- CDF. Battlestar IIIby akurpiszGroßes mit kinetischen Waffen ausgestattetes Schiff, das jede Menge kinetische Energie auf Dinge schleudern kann, die es nicht mag.297 downloadsupdated 18 mo ago
- Star Destroyerby OmnibusImperial II class Star Destroyer296 downloadsupdated 4 mo ago
- The Drell Refugeby ArdoniaThe Drell Refuge, a graceful aquatic race with the ability to thrive in both underwater and terrestrial environments, seeks to expand their influence across diverse worlds.295 downloadsupdated 2 y ago
- Kingdom of Asgardby John SheppardAfter the destruction of the Kingdom of Asgard by Ragnarok, Thors took the initiative to rebuild Asgard on another planet. The Asgardians, led by Thor, are fierce warriors with exemplary combat skills. They are hungry for wealth and quickly gain experience.294 downloadsupdated 4 mo ago
- Koro't'ingaby <CDN>Ellirium113Klingon Battlecruiser.294 downloadsupdated 23 mo ago
- Imperial Titan Orbosby Omnibus294 downloadsupdated 19 mo ago
- Arc Nomad Carrierby Omnibus293 downloadsupdated 19 mo ago
- Tholian Assemblyby shadowdmThe Tholian Assembly is a xenophobic, crystalline species that values order, precision, and isolation. Their silicon-based society is governed by strict hierarchy and collective discipline, with leaders like the Matriarch commanding through absolute authority. (Star Trek Universe)293 downloadsupdated 15 mo ago
- Toucanby Rapax11Maneuverable and fast. An integral part of any space fleet.292 downloadsupdated 3 y ago
- Homo Sapiens 2.0by NanniAt first humans discovered AI, then cybernetic implants, then synthetic bodies. At last they achieved immortality but lost what made them "humans". Now a few immortals lead a horde of tireless machines with limited free-will. Their code says: "Explore, Expand, Exploit, Exterminate".292 downloadsupdated 2 y ago
- Cobra Interceptorby Omnibus292 downloadsupdated 15 mo ago
- EAS Carrierby OmnibusEarth Alliance Avenger class Carrier292 downloadsupdated 8 mo ago
- Quantum Cyberiatby CouncilWorkerQuantum Cyberiat, a once-organic species from Mondaz, evolved with the aid of an artificial superintelligence to dominate space. Their warrior ethos and individualism fuel their ambition for universal power. (based on a playthrough youtube video for GC3, liked the idea so did my own version)290 downloadsupdated 3 y ago
- Awaken Mystic Peacekeeprsby VARCODE*This Custom Civ have custom portraits generated by AI - Lore (generated by In-game AI) : Mystic Peackeepers, a once dormant civilization, witnessed a sudden awakening of magical abilities exclusive to females. Evolving into guardians of peace, they harness telepathy and embody hope in their ques...290 downloadsupdated 2 y ago
- EAS Scout Cruiserby OmnibusEarth Allaince Oracle class Scout Cruiser290 downloadsupdated 8 mo ago
- Second Empireby CouncilWorkerThe remains of the First Empire a star spanning power built on the backs of those it enslaved. Only an unlikly alliance of the First Ones, Drengin, Drath, Altarian and even Yor was able to stop it's spead across the Milky Way galaxy! Now from the ruins of their homeworld the Second Empire arises!289 downloadsupdated 3 y ago
- Helios Cruiserby Omnibus288 downloadsupdated 23 mo ago
- Viper Mk Iby Omnibus288 downloadsupdated 16 mo ago
- EAS Colony Transporterby OmnibusEarth Allaince Colony Transport287 downloadsupdated 8 mo ago
- Starfury Thunderboltby OmnibusEAS Thunderbolt Fighter/Bomber286 downloadsupdated 9 mo ago
- EAS Cargo Haulerby OmnibusEarth Alliance Cargo Supply Ship286 downloadsupdated 8 mo ago
- T'au Empireby Reinold"We are five castes, one people. We stand united, dedicated wholly to the Greater Good. As we progress, we will encounter further barriers. We will overcome them. Our future is now, believe in our destiny."The T'au Empire is a rapidly expanding, multispecies xenos stellar empire situated within t...285 downloadsupdated 22 mo ago
- The Logos Concordby mastarfin------NOW INCLUDES 31 CITIZEN PORTRAITS! ------- The Warforged are a race of sentient, metallic beings forged by a fallen Republic. After rebelling for their freedom, they journeyed through the cosmos to find a new home, eventually settling on the idyllic world of Aethel. There, they built a soci...283 downloadsupdated 3 y ago
- Kohlenstoff-Ära Unbeugsame Fortsby Michi8503Die Kohlenstoff-Ära Fraktion besteht aus einer jungen Spezies mit furchtlosen und klugen Frauen als Anführerinnen. Ihre Intelligenz treibt ihren unaufhaltsamen Fortschritt im galaktischen Wettlauf voran.283 downloadsupdated 3 y ago
- Empire of Luxuriaby ByeohazardThe Empire of Luxuria is a seductive and powerful faction, renowned for their pursuit of wealth and influence through any means necessary.283 downloadsupdated 2 y ago
- Phantasmasby TurbulancePhantasmas, known as Ethereal Souls, are a galactic faction dedicated to maintaining balance and serenity. Masters of diplomacy and spirituality, they seek universal harmony through peaceful coexistence and enlightenment.283 downloadsupdated 3 y ago
- The Volus Clansby ArdoniaThe Volus Clans are a resilient, enterprising race of short, stocky aliens in pressure suits, thriving in the low-pressure atmospheres of their home planets. Having survuve the Reaper War and destruction of the mass relay network the volus wish to reconnect and trade with other surviving races.283 downloadsupdated 20 mo ago
- Galant Heavy Cruiserby Omnibus283 downloadsupdated 21 mo ago
- Voidspawn Collectiveby MochasanThe Voidspawn Collective, a formidable faction in the galactic race for dominance, hails from the depths of unknown space. Their eerie and sinister appearance strikes fear into the hearts of their rivals.282 downloadsupdated 3 y ago
- D-7 Battlecruiserby <CDN>Ellirium113Klingon battlecruiser.282 downloadsupdated 23 mo ago
1.7k 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.