Mod «Improved Siam» for Hearts of Iron 4 (v1.9.0 - 1.9.2)

Improved Siam

"Improved Siam" was created to increase the content of Thailand / Siam to have more features based on real history. Some parts are made for the fun of this mod, for example, to add an event to give Phraya Songsuradet a chance to win the resolution of the council to be prime minister. Which is an alternative history and to improve from the old Mod "Greater Siam" to look better. From former developers Greater Siam and Siam Extra.


  • Make Division Template More Accurate
  • Add Siam Equipment Picture
  • Add Some Event
  • Add Some National Idea
  • New Weapon Technology
  • Siam National Focuses

File info

  • Added by: TOP-Mods
  • Author: Hermann
  • Mod version: 01.05.20
  • File format: ZIP
  • File size: 111.7 mb
  • Source: Go to
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