Terra Firma 2

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• Patch Notes·18 Aug 2026Official

  Terra Firma 2 Disasters Update

  Greetings worldbuilders! The first full update to Terra Firma 2 since release last year is now complete. This update adds a variety of disasters, each providing a unique way to interact with and modify your creations.MeteorsChoose the size and speed then fling your space rocks ranging from (relatively) tiny blips all the way up to dinosaur killers that will completely remake the surface of your world.VolcanoesVolcanoes erupt over time, building mountains and then ending with the caldera collapsing. Customise the type of lava to produce mountains with gentle or steep slopes. Watch volcanic islands rise from the ocean and then erode back into atolls.FloodsTrigger gigantic floods that wash away everything in their path.TsunamisMove massive amounts of ocean water around and watch the resulting waves wash across the landscape.EarthquakesWarp and transform the landscape with earthquakes featuring customisable fault direction, horizontal and vertical slip amounts.Water PhysicsThe water physics has been overhauled with more realistic flows for large bodies of water and ocean water now fully simulated. Sea levels can now be raised or lowered to explore a variety of different terraforming scenarios. A new configuration option makes water prefer to not run off the edge of the map.Keep simulating when zoomedYou can now enable and disable the zoomed in detail view. When disabled, the simulation will keep running at any zoom level allowing you to closely inspect the landscape as it evolves.  Other improvementsAdded a new erosion speed that can be set to any value you wantAdded a visual display of current temperatureSignificant rework to dirt, rock and lava makes properly conical landforms rather than the square ones seen previouslyNew groundwater simulation for better distribution of swamps and marshes, and plant growth in desert areasImproved simulation of grass growth cyclesLighting options are now saved when changedAdded hotkeys for different camera modesMany performance impro...
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• Announcements·29 Jul 2026Official

  Meteors feature in Beta Testing

  Greetings worldbuilders! The next major update for Terra Firma 2 is now available to test on the beta branch. This update features a long awaited feature- the ability to crash meteors into your worlds! Choose the size and speed then fling your space rocks ranging from (relatively) tiny blips all the way up to dinosaur killers that will completely remake the surface of your world.We've also listened to feedback and added a button to toggle the world zoom detail on and off. When zoomed detail is off, the simulation will continue running at all zoom levels, allowing you to closely inspect your worlds as they evolve. Other fixes:Minecraft export now uses fractional water levels for smoother water renderingFixed glitches on map boundaries in Minecraft exportsFixed water glitches in Minecraft exports~38% reduction in GPU memory used, allowing larger map sizes without crashing on some computersFixed bug with plant billboard renderingFixed bug with hovering buildings in campaign mode with UI scales other than 100%Fixed bug with checks on road building costs in campaign mode not reflecting actual costsFixed bug with lava and volcanoes not working properly on Large and Huge mapsVarious performance improvements
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• Patch Notes·29 May 2026Official

  Update notes for 29th May

  Added new erosion speed with configurable value Added configuration setting for whether sea level changes the temperature Added configuration setting for whether ocean water rises when editing land under it Fixed serious performance issues on Nvidia cards introduced in previous update Overall simulation ~10% better performance, much better performance when zoomed in on trees Minecraft exports now feature water with fractional heights Fixed exporting Minecraft worlds with custom sea levels Fixed rendering issue with topographic and other data overlays at map edges Fixed behaviour on map edges where dirt would form a barrier Temperature map now properly updates when game is paused and at game start Fixed dirt/sand display on map load when paused Fixed bug with sea levels above 0m not saving/loading properly Fixed bug with shrubs not appearing when sea levels are lowered Fixed bug with cold rocks rendering differently to warm ones Fixed sand and dirt coverage in Minecraft export Fixed grass coverage in Minecraft export Fixed bug with water disappearing after earthquake Limited ice height to prevent buggy behaviour Fixed heightmap export when image dimensions are lower than world dimensions Fixed bug with earthquake arrows direction when slip is negative Fixed bug with ocean water heights not being saved/loaded properlyn
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• Patch Notes·8 May 2026Official

  Water and oceans update

  Greetings worldbuilders! The next major update for Terra Firma 2 is now available to test on the beta branch. This update features vastly improved water physics for large flows of water, with the ocean now fully simulated. Test out new features like:Trigger floods that wash away everything in their pathRaise the sea level and watch the landscape slowly floodLower the sea level and watch the oceans drain, uncovering the sea floorTrigger tsunamis to wreck havoc across the landscapeLava now melts snow and ice betterOther improvements:Minecraft export supports exporting to different versions (1.20.1, 1.20.2, 1.21.1, 26.1+)Bugfixes and improvements to the Minecraft exportGeneral 10-20% performance improvement for main simulationGroundwater improvements make low lying flat areas swampyGroundwater improvements make plant growth in deserts much more realisticAdded temperature visual displayFixed major bugs with the amount of sediment that is depositedConfiguration options for whether water will try to avoid flowing off the map edgesWater properly flows over the top of lava nowIce, lava and water render properly on map sidesLighting options saved to configurationFixed bug with symmetrical random editingAdded hotkeys for different camera modesSavefiles remember whether the game was paused or running when loadingNumerous other bugfixes and small improvements
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• Patch Notes·29 Apr 2026Official

  Water and oceans update in beta testing

  Greetings worldbuilders! The next major update for Terra Firma 2 is now available to test on the beta branch. This update features vastly improved water physics for large flows of water, with the ocean now fully simulated. Test out new features like:Trigger floods that wash away everything in their pathRaise the sea level and watch the landscape slowly floodLower the sea level and watch the oceans drain, uncovering the sea floorTrigger tsunamis to wreck havoc across the landscapeLava now melts snow and ice betterOther improvements:General 10-20% performance improvement for main simulationGroundwater improvements make low lying flat areas swampyGroundwater improvements make plant growth in deserts much more realisticAdded temperature visual displayFixed major bugs with the amount of sediment that is depositedConfiguration options for whether water will try to avoid flowing off the map edgesWater properly flows over the top of lava nowIce, lava and water render properly on map sidesLighting options saved to configurationFixed bug with symmetrical random editingAdded hotkeys for different camera modesSavefiles remember whether the game was paused or running when loadingNumerous other bugfixes and small improvements
  Read full article on Community Announcements (mehwoot)