• We have updated our Community Code of Conduct. Please read through the new rules for the forum that are an integral part of Paradox Interactive’s User Agreement.

unmerged(881)

Colonel
Feb 8, 2001
1.175
0
Visit site
How to read the diagrams

  • Each diagram lists the research fields required for research of the item.
  • Each diagram lists the specific theories and applications required for research of the item.
  • Some diagrams have warnings about the effects of certain research choices so be mindful of them before making your selection.

Points to keep in mind
  • The diagram threads use the same ID numbering system as State Machine's Technology Charts and Analysis pages and (of course) the Hearts of Iron tech database.
  • Many research items have the effect of deactivating other research choices e.g. research of an Improved Medium Tank with a 40mm+ Tank Gun automatically deactivates the 20mm+ and 30mm+ research options.
  • The diagrams list only the specific components needed for research. Be mindful of the fact that many of these components might require that multiple sub-components of their own be researched before your research goals can continue.
  • The diagrams are listed in platform groups e.g. all Light Tanks are listed together to aid in searching... at least how I would search if I was looking for something. :D
  • My use of colors, specifically blue, indicates only the required prerequisites that are part of the research progression (e.g. the 40mm+ requires successful research of the 30mm+ tank gun) and are components of a given diagram item.
  • Your research choices could very well result in an item I have marked green being listed as [color=FF9933]in the process of being researched[/color] or already successfully researched.
 
Last edited:
Basic Synthetic Oil Plants

Required research fields:

Industrial Research

Required components

Level 0 Theory:
Hydrogenation


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Last edited:
Improved Synthetic Oil Plants

Required research fields:

Industrial Research

Required components

Level 6 Theory:
Hydroforming

Level 0 Application:
Basic Synthetic Oil Plants


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Last edited:
Advanced Synthetic Oil Plants

Required research fields:

Industrial Research

Required components

Level 10 Theory:
Iso-Octane and Aklylate Process

Level 6 Application:
Improved Synthetic Oil Plants


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Last edited:
Synthetic Rubber Plants

Required research fields:

Industrial Research

Required components

Level 3 Theory:
Polymerisation

Level 3 Applications:
Butadiene Processing Plants
Styrene Processing Plants



Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Improved Synthetic Rubber Plants

Required research fields:

Industrial Research

Required components

Level 7 Theory:
Catalytic Polymerisation

Level 3 Application:
Synthetic Rubber Plants


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Last edited:
Advanced Synthetic Rubber Plants

Required research fields:

Industrial Research

Required components

Level 11 Theory:
Cold Polymerisation

Level 7 Application:
Improved Synthetic Rubber Plants


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Last edited:
Fluid Catalytic Cracking Plants

Required research fields:

Industrial Research

Required components

Level 9 Theory:
Fluid Catalytic Cracking

Level 2 Application:
Catalytic Cracking Plants


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Last edited:
Polyurethane

Required research fields:

Industrial Research

Required components

Level 5 Theory:
Improved Plastics

Level 5 Application:
Improved Synthetic Materials


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Last edited:
Polypropylene

Required research fields:

Industrial Research

Required components

Level 11 Theory:
Cold Polymerisation

Level 11 Applications:
Very Advanced Synthetic Materials
Polypropylene



Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Synthetic Rubber Plants

Required research fields:

Industrial Research

Required components

Level 3 Theory:
Polymerisation

Level 3 Applications:
Butadiene Processing Plants
Styrene Processing Plants



Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Improved Synthetic Rubber Plants

Required research fields:

Industrial Research

Required components

Level 7 Theory:
Catalytic Polymerisation

Level 3 Application:
Synthetic Rubber Plants


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Last edited:
Basic Synthetic Materials

Required research fields:

Industrial Research

Required components

Level 2 Theory:
Catalytic Cracking

Level 1 Application:
Early Synthetic Materials

Level 2 Application:
Catalytic Cracking Plants


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Last edited:
Improved Synthetic Materials

Required research fields:

Industrial Research

Required components

Level 5 Theory:
Improved Plastics

Level 2 Application:
Basic Synthetic Materials


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Advanced Synthetic Materials

Required research fields:

Industrial Research

Required components

Level 9 Theory:
Fluid Catalytic Cracking

Level 5 Application:
Improved Synthetic Materials


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Very Advanced Synthetic Materials

Required research fields:

Industrial Research

Required components

Level 11 Theory:
Cold Polymerisation

Level 9 Application:
Advanced Synthetic Materials


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Advanced Synthetic Rubber Plants

Required research fields:

Industrial Research

Required components

Level 11 Theory:
Cold Polymerisation

Level 7 Application:
Improved Synthetic Rubber Plants


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Improved Synthetic Oil Plants

Required research fields:

Industrial Research

Required components

Level 6 Theory:
Hydroforming

Level 0 Application:
Basic Synthetic Oil Plants


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Advanced Synthetic Oil Plants

Required research fields:

Industrial Research

Required components

Level 10 Theory:
Iso-Octane and Alkylate Process

Level 6 Application:
Improved Synthetic Oil Plants


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.
 
Vinyl Acetates

Required research fields:

Industrial Research

Required components

Level 2 Theory:
Catalytic Cracking

Level 2 Application:
Basic Synthetic Materials


Green is an item that can be researched.
Rust is an item being researched.
Blue is an item that has been researched.