- Indie
- Simulation
- Strategy
Game
Foundation
Setting to redefine the city-building genre, Foundation puts the emphasis on the organic aspects of urbanism in the cities of old, powered by Polymorph Games’ proprietary game engine, Hurricane, which allows for full mod support and is optimized for the thousands of moving parts that come with building humongous cities. The game features in-depth resource management akin to the Anno (Dawn of Discovery) series, expertly mixed with classic city-building elements from Settlers, SimCity, and Pharaoh all topped with narrative encounters inspired by Crusader Kings II to create the ultimate medieval
Foundation is a grid-less, laidback medieval city-building game with a focus on organic development, monument construction and resource management.
About Foundation
- Released
- January 2025
- Developer
- Polymorph Games
- Platforms
- PC (Microsoft Windows)
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 AnnouncementsHotfix 1.12.0.16 is liveHello Lords and Ladies!Thanks for continuing to report issues you encounter in Foundation. Your reports help us track down bugs, and this hotfix (1.12.0.16) addresses a few of them.ChangelogFixed a crash when closing the Festival Setup window after replacing a festival partFixed an issue that could cause villagers to get stuck idlingFixed missing page titles in the Royal BookUpdated localisatio...
- Community AnnouncementsHotfix 1.12.0.15 is liveHello everyone, Hotfix 1.12.0.15 is Live Thank you for your patience and for continuing to report issues. This hotfix fixes an issue with the Continue Game button when loading a save with DLC deactivated and addresses several crashes.Bug FixesFixed the Continue button not responding when loading a save with DLC deactivated.Fixed an occasional crash when closing the Festival Setup window.Fixed a...
- Community AnnouncementsPatch 1.12.0.14 is live!Dear Lords and Ladies,We sincerely apologize to everyone who encountered issues enabling Foundation: Harvest Festival in an existing game. This patch improves the process and addresses a few additional issues reported since launch.ImprovementsThe main menu’s Continue button now offers to enable newly installed DLCs in your existing game.Bug FixesAnimals caught in a movement loop are now telepor...
- Community AnnouncementsHotfix 1.12.0.13 is liveHello everyone, There's a new hotfix out that includes fixes for missing building parts for quarries in old save files as well as the ! (s new) icon not disappearing in the build menu.Patch notes: Fixed pre-DLC release saves were missing building parts in the quarry listsFixed the ! (is new) icon showing when there were no new buildings in the categoryFixed missing Guivre heraldry emblem when t...
- Community AnnouncementsHotfix 1.12.0.12 is liveHello everyone, We have a hotfix out that could prevent some players from activating the DLC in game. Please update your game files to the latest version.Patch notes: Fixed a crash on load of some older saves.Fixed an issue with the in-game DLC selection that could show the DLC as enabled when it was not.
- Community AnnouncementsFoundation: Harvest Festival is out now!Greetings, Lords and Ladies, The harvest is in. The Tavern is bustling, the tables are being prepared, and across the village, everyone has a part to play. Outside, orchards are heavy with fruit and pastures are alive with animals. Inside, your villagers are turning the countryside's bounty into everything they need for a celebration. And before long, the Festival Grounds will be ready to welco...
- Mods indexed
- 150
- 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.
- Common ResourcesAdds resources and villager needs required by other mods.666.8k downloads
- Foundation Extended Building FunctionsA set of custom building functions for other mods to take advantage of! Check out mod.io for more details! THIS MOD IS A DEPENDENCY IT DOES NOTHING ON ITS OWN!430.2k downloads
- Fantasy DecorationsA collection of various fantasy and medieval-themed decorations335.6k downloads
- House Addition V5Adds 8 models of houses free to install manually.238.2k downloads
- Villager DiversityVillager height, weight and hair colour varies randomly. Adds ten thousand new villager names and nicknames.165.5k downloads
- Living QuartersAdds living quarters to the Lord Manor, Tavern, Castle, and City Market.110.0k downloads
- Housing +Increases residential housing capacity and maximum job distance.104.5k downloads
- Storage +In times of plenty, prepare for scarcity. In times of scarcity, only the prepared shall thrive.102.5k downloads
- Trading PostLand-based trading system for exchanging bulk quantities of non-perishable items.101.2k downloads
- Balanced TradingAdds new resources to trading villages, balances prices, reduces trade volumes, and unlocks random trading partners at the beginning of the game.95.3k downloads
- Windows Decoration V4Adds windows and other items.86.4k downloads
- Markets +Adds an extra slot (configurable) to all 9 of the markets stall types in the game.77.3k downloads
- Deforestation ToolsAllows the clearing of trees within your Territory with the click of a button.75.3k downloads
- Auto Accept New ImmigrantsAuto accepts new villagers/newcomers upon arrival at your village center.75.2k downloads
- Basic MaterialsClay, thatch, shingles and tile are required for most buildings. Make and sell pottery.74.6k downloads
- Better FarmsAccelerates harvest rate, extends harvest season, and/or increases product storage of wheat farms, vegetable farms, hopfields, and vineyards73.6k downloads
- AuthorityTerritory purchase and upkeep require you to establish your Authority by appointing officials and household staff.72.1k downloads
- Cider Brewery MonumentAdds a Cider Brewery Monument with apple orchard. It allows production of apples and cider. The apples can be sold at markets and the cider is tradable in taverns.71.1k downloads
- Corn FarmAdds a farm producing corn, and adds a corn grind function to the vanilla windmill.70.7k downloads
- FlaxGrow flax on farms as an alternative raw material for producing cloth.68.6k downloads
- Patrols +Tweaks the patrols to be a bit more effecient.67.9k downloads
- Production Tweaks: CombinedTweaks wheat, flour, coal, cheese, gold bars, and more. See description for details.62.6k downloads
- Watchtowers +Modifies Watchtowers to have a 360 degree view with slightly increased range.56.1k downloads
- Production BoosterThis mod boost production in (almost) all of the resources to 10 per worker return to building, it also adds gem production to the mines.54.0k downloads
Browse all 150 Foundation mods Sortable by downloads, rating and date.
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Why Foundation 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 Foundation 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.