Underground Biomes Constructs Mod 1.16.5-1.15.2->1.12.2- Download with Forge

By | March 2, 2020

Underground Biomes Constructs Mod 1.16.5-1.15.2->1.12.2 is a revision and extension of the Underground Biomes. It added stairs, walls, and buttons in almost all of the UB stones.




Biome size setting works The underground biomes were generating with a biome size of 3 regardless of the size in the config file (= very roughly 128 blocks across). This has been fixed. The size will now be 16 x 2^(configsize), so 16 for 0, 128 for 3, 512 for 5, 16K for 10, and so on. Anything over 21 would make the entire mine craft world, out to block 30,000,000,  one single biome. Any value over 21 is set to 3 so if you use an existing config you’ll get a distribution with the same character as what you had before.

The default has been changed to 3 (same result as old configs with the current release). At that setting, you will almost always see multiple underground biomes in any outdoor screenshot. If you like seeing large stretches of similar stone, I would recommend a setting of 5, which makes most biome blobs a single type of strata column. A config setting of 5 does mean that most 2K by 2K max zoom maps will be missing a few stone types.

Important: you will get sharp changes between already-generated and newly generated chunks.  In my experience this is not generably noticeable (can you see where it happens in my survival journal? I can’t.)

Faster Generation UBConstructs now passes blocks by reference inside terrain generation and this speeds up generation by a factor of at least 2. Also, large parts of the generation process were not producing useful effects and are now skipped. On my computer (a 2 year old Mac) UB can almost keep up with flying in creative, and I never have any problems at all while walking around.

Easier vanilla stone recipe The default recipe for UB stone to vanilla stone in new config files has been changed from 4 -> 1 to 4 -> 4. Settings in existing config files will not change.

Bug fixes and performance improvements for the add ons in UBConstructs
UBConstructs now works server-side

UB stone buttons are now properly destroyed by pickaxes

One stone for one button UB stone buttons are now made with the same recipe as vanilla stone buttons ? 1 stone for 1 button, shapeless. This will conflict with the 1 UB stone -> 1 vanilla stone recipe you can get by changing the configs, so you can’t use that recipe and UB buttons at the same time. I would recommend using the 4 -> 4 stone conversion recipe instead. There’s a config option to shut off the buttons if you wish.

Implementation of UB features UBConstructs was written from a slightly older version of Underground Biomes, and was missing a couple of (relatively minor) improvements and bug fixes from the latest release. All these have been added to Constructs except the multipliers for stone hardness and explosion resistance.
New features:
Smoothstone and Cobblestone slabs for all stones

API available There is a simple API that allows another mod to get the block ID and metadata UB would generate at a particular block location. Performance should be close to that of UB generation itself if used properly. Even non-optimized use seems fine on my computer.

Smoother strata transitions option There is an option in the config file, ?harmoniousStrata? that rearranges the strata layers slightly to stop black-white transitions. Default is off (old strata)

Cobblestone replacement There is an option to replace cobblestone made by world generation with the appropriate UB cobblestone. This will also convert village roads to appropriate brick (gravel looks bad next to many UB stones). Stone stairs become oak; making UB stairs during village generation is difficult. Default is off.
Requirements Minecraft 1.6.4 or 1.6.2 with Forge installed. It works with Forge 871 and 953; should work with any Forge in-between and possibly with earlier ones.

Installation Place the zip file in your mods folder. Remove any other copy of Underground Biomes or Underground Biomes Constructs.


  • Stairs, slab, walls, and buttons are all made with the same recipes used with vanilla stone. Brick cannot be used for buttons; otherwise all stone versions can make all products.

Download Links:

For minecraft 1.6.4

32×32 graphics pack

16×16 graphics pack

For minecraft 1.7.10/1.7.2 (32x texture pack included)



For Minecraft 1.10.2


For Minecraft 1.11.2


Credits: Zeno410


Minecraft Forge

How to install:

    1. Make sure you have already installed Minecraft ForgeMinecraft 1.12.2 Mods
    2. Locate the minecraft application folder.
      • On windows open Run from the start menu, type %appdata% and click Run.
      • On mac open finder, hold down ALT and click Go then Library in the top menu bar. Open the folder Application Support and look for Minecraft.
    3. Place the mod you have just downloaded (.jar file) into the Mods folder.
    4. When you launch Minecraft and click the mods button you should now see the mod is installed.

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