Supply Chain Semi-Auto Builder

This mod is compatible with game version 1.13 and can be installed mid-game.
Note that this mod generally doesn’t require updates for new game versions.
All features can be enabled or disabled anytime and only affect player.
This is an auto-builder for government constructions. For private constructions, please subscribe Controllable Private Construction.

Links: Support me[ko-fi.com], Join Discord[discord.gg]

13.05.2026

• Please ensure the installed mod is up-to-date, as it may not be auto-updated sometimes.
• Updated for 1.13. Note that this mod no longer supports version below 1.13.
• Optimized scripts and reworked some processes.
• Improved some text description.
• Fixed a bug that caused incorrect calculation of number of Power Plants.
• New feature: auto-build Government Administration.

• Expand the selected supply chains in the most profitable way while also taking both economy of scale and balanced development into account.
• Auto-build more construction sectors if the budget allows.
• Auto-build more government administration.
• Auto-build new railways and power plants in suitable states gradually.
• One-click plan local supply chains in suitable states.
• Calculate the suitable construction number to avoid too short/long construction queue.
• Multiple configuration options.

• Semi-Auto Builder (SAB) can expand the selected supply chains efficiently. It can be enabled for different supply chains separately.
• Suitable Number of Constructions (SNC) is calculated to prevent a too short/long queue.
• Buildings are expanded in order based on SNC and Weighted Profitability (WP) .
• Multiple levels of the same building can be added to the queue at once.
• Buildings are categorized into different supply chains, e.g., chemicals supply chain includes buildings that produce iron, sulfur, wood, dye, paper, fertilizer and explosives.
• The building types of a supply chain might change as technology develops.
• For the detailed flowcharts and calculation, refer to image 1 to 11.

• Auto-build more construction sectors when the budget and investment pool income allow.
• States that are populated, have higher construction efficiency and suitable resources will be prioritized.

• Auto-build more Government Administrations when certain conditions are met. All conditions are customizable.

• SAB will build new railways and power plants gradually in states that meet certain conditions.
• The constructions will start in the most suitable states.
• SAB can expand railways and power plants that meet certain conditions efficiently.
• The expanding will try to keep the local price of transportation/electricity close to but slightly higher than their base prices, or try to provide enough infrastructure.
• If no Max Added Levels were set, the required added levels will always be added to the construction queue at once.
• The calculation of added levels doesn’t rely on PMs and the result will still be accurate if the output of railway and power plants are modified by mods.

• One-click plan a suitable supply chain in a state. SAB will try to build the required buildings of a supply chain that the state hasn’t have yet.
• Two main categories: consumer & industrial, with distinct logic, multiple sub-categories, covering most buildings.
• Planning based on optimal long-term development rather than current profit.
• Focus 1: Maximize MAPI utilization based on local resource potential.
• Focus 2: Efficient utilization of arable land and economics of scale, preventing fragmented industries (especially arable land buildings).
• Focus 3: Balanced industrial proportions.

• Various configuration options like labor limits, incorporated states only, etc.

1. Subscribe the mod.
2. Use the decision "Supply Chains Management" to activate the journal entries.

• No vanilla files were overwritten, so it should be compatible with most mods.
• Only works on vanilla building types.

• English, Chinese.
  Other languages use English text.

Up-to-date mod collection: zw’s Vic3 Mods
Support me or request a commission[ko-fi.com]
Join Discord[discord.gg]

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• Land Battle Fixed
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• Customize Uniforms
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