brokenmass-MultiBuildBeta icon


This mods gives you the ability to blueprint and build multiple copies of a building, with optional space between the copies, including the inserters

Last updated 9 months ago
Total downloads 58851
Total rating 39 
Dependency string brokenmass-MultiBuildBeta-2.3.8
Dependants 0 other mods depend on this mod

This mod requires the following mods to function

xiaoye97-BepInEx-5.4.5 icon

BepInEx5.4.5 mod plugin framework, Mod框架

Preferred version: 5.4.5



This mods gives you the ability to build multiple copies of a building, with optional space between the copies. It also allow you to create / restore/ export/ import blueprints, allowing you to copy and paste whole parts of your base Please carefully read the FAQ section.

Visit the amazing website created by Diacred to view and share blueprints!

This mod is NOT COMPATIBLE with AdvancedBuildDestruct and Copyinserters, but that shouldn't be a problem as this mod provides the same functionalities (multibuild, copy of inserters, etc).

The mod will not initialise if any of the incompatible mods are loaded. please remove them from your modman profile or from your plugins (if you are installing mods manually)


In this screenshot you can see MultiBuild in multibuild mode and BuildCounter;

Release channels

This mod is released on 2 separate "channels":

  • MultiBuild: The stable version of this mod. Only when functionalities have reached a target level of stability they are promoted to this channel. This mean that this version is updated less often than the other. Consider this the SLOW CHANNEL and choose this version if you prefer stability over functionalities.

  • MultiBuildBeta: The 'bleeding' edge version of the mod, aligned to the most recent version of the code. While still being highly reliable, when using this versions you might experience some 'weirdness', graphic glitches and, very rarely, an error message. Consider this the FAST CHANNEL and and choose this version if you want the latest functionalities and/or if you want to contribute to the development of this mod.

The two channels are not compatible with each other and none of the 2 will load if they are both loaded at the same time.


This mod does not alter any entity or save anything to disk.
This mean the mod SHOULD be very safe to use and not break your savegame, not even after an update.
If it stops working following a game update, you can just disable it and your game will just work, obviously without the extended capabilities provided by the mod.


MultiBuild Mode

Select a building from the building bar or copy an existing building, then press LEFT ALT keyboard button to enter multibuild mode.

This mode is disabled while holding a blueprint (for now).

  • Left Mouse Click once to start building and Left Mouse Click one more time when you are happy with the placement of the copies.
  • Press TAB to toggle the pasting of the copied inserters
  • Press + and - on your keyboard to increase / decrease the spacing between buildings
  • Press CTRL + and CTRL - on your keyboard to increase / decrease the spacing period (number of copied before adding a space)
  • Press 0 to reset spacing to 0 and spacing period to 1
  • Press Z to 'rotate' the building path (if you are not building on a straight line)

Blueprint Mode

Click the blueprint button in the build dock

  • The first button initiate the creation of a new blueprint
    • left click (and hold if you want) to add entities to the blueprint
    • hold CTRL and left click (and hold if you want) to remove entities from the blueprint
    • hold ALT and left click to define the blueprint reference building. This is the "center" of your blueprint and where the cursor will be positioned when pasting.
    • right click to exit blueprint creation mode
  • The second button restore the last used blueprint
  • The 3rd button exports the current blueprint to your clipboard
  • The 4th button import the data from your clipboard into your blueprint

Inserter copy functionality

When shift+click an existing building it will be copied with all the connected inserters (creating a minimal blueprint , that you can store and reload);



If this option is set to true, the mod will remember the last spacing used for a specific building. Otherwise the spacing will be the same for all entities.

  • Type: boolean [true/false]
  • Default value : true


  • What are the limitations of this mod (MultiBuild mode)?
    This mod doesn't allow to place multiple miners, oil extractors or orbital collectors.

  • What are the limitations of this mod (Blueprint mode)?
    This mod is still in development and so has one or more know issue:

    • in some conditions, when pasting a blueprint, it's possible to place building nearer than what is possible in vanilla
    • splitter / boxes settings are not copied


  • Add ability to build a full 'loop' of a certain type of building. useful to build a lot of solar panels.



  • Fix incorrect placement of entities when shift + clicking and multibuilding with non 0 spacing
  • Fix edge case ArgumentException error


  • Allow to blueprint and paste stacked buildings
  • Copy storage size setting (only when blueprinting and not when shift + clicking to avoid mistakes)


  • Fix issue where moving huge blueprints around could crash the game :O


  • Restore the ability to build lines of daisy chained buildings in multibuild mode


  • Fix issue where the mod was not correctly checking if you had enough items to paste the blueprint (especially with inserters)
  • Allows to define the blueprint reference building by holding ALT and clicking a building. The reference will be the 'center' of your blueprint
  • Silence error message related to buffer limits when pasting huge blueprints (>8k belts)


  • Fix error occurring when shift + clicking stacked buildings


  • Fix regression issue with limited build area when pasting a blueprint


  • Restore missing visual indicator for blueprint/ multibuild mode & spacing


  • Correctly copy Splitter settings (FINALLY) (only when blueprinting and not when shift + clicking to avoid mistakes)
  • Correctly copy Logistic station settings (only when blueprinting and not when shift + clicking to avoid mistakes)
  • Improve compatibility with Touhma GalacticScale (thanks innominata)
  • Rewritten multi-threading logic to further improve fps with big blueprints


  • Fix compatibility with game version


  • MultiBuild is now MultiThreaded. You should notice an improvements in performance when pasting large blueprints / long lines of buildings
  • fix 2 bugs (NPE and array index outOfBounds) happening when blueprinting unbuilt buildings or buildings with unbuilt inserters

Previous versions

For older changelog entries visit

Special Thanks

Thanks to Kremnev8 for the amazing work on the UI ! Thanks to Nordblum, Fury_Fairy, iskabot , Ixosis, NZ_Wanderer, Kodu, Wingless for the closed beta testing.

Available versions

Please note that the install buttons only work if you have compatible client software installed, such as the Thunderstore Mod Manager. Otherwise use the zip download links instead.

Upload date Version number Downloads Download link  
2021-4-12 2.3.8 19247 Version 2.3.8 Install
2021-4-10 2.3.7 2114 Version 2.3.7 Install
2021-4-10 2.3.6 780 Version 2.3.6 Install
2021-4-10 2.3.5 1063 Version 2.3.5 Install
2021-4-9 2.3.4 418 Version 2.3.4 Install
2021-4-9 2.3.3 800 Version 2.3.3 Install
2021-4-8 2.3.2 595 Version 2.3.2 Install
2021-4-8 2.3.1 172 Version 2.3.1 Install
2021-4-8 2.3.0 197 Version 2.3.0 Install
2021-4-1 2.2.1 8816 Version 2.2.1 Install
2021-3-24 2.2.0 6818 Version 2.2.0 Install
2021-3-19 2.1.4 6895 Version 2.1.4 Install
2021-3-19 2.1.3 336 Version 2.1.3 Install
2021-3-19 2.1.2 240 Version 2.1.2 Install
2021-3-19 2.1.1 641 Version 2.1.1 Install
2021-3-18 2.1.0 1359 Version 2.1.0 Install
2021-3-15 2.0.6 4771 Version 2.0.6 Install
2021-3-15 2.0.5 605 Version 2.0.5 Install
2021-3-15 2.0.4 531 Version 2.0.4 Install
2021-3-14 2.0.3 1675 Version 2.0.3 Install
2021-3-14 2.0.2 200 Version 2.0.2 Install
2021-3-14 2.0.1 292 Version 2.0.1 Install
2021-3-14 2.0.0 286 Version 2.0.0 Install