Difficulty

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Difficulty in Hearts of Iron 4 is a modifier that can provide either more or less of a challenge to the player by modifying certain values for the player or the AI. Easier difficulties apply bonuses to the player, while higher difficulties will apply penalties to the player as well as bonuses to the AI.

Setting a difficulty[edit]

Difficulty is set when creating a new game, shown in a menu in the bottom-right along with "Historical AI Focuses" and "Ironman Mode". There are five settings available[1].

Presets[edit]

By default, the following settings are available, with the mentioned modifiers. The table is listed from easiest to hardest setting.

Difficulty Setting Player modifiers AI modifiers Description
Civilian No modifiers "We Can Do It!"
Recruit
  • Political Power Gain: +25%
  • Production Efficiency Cap: +20.00%
  • Lack of Resources Penalty: -30.00%
  • Research Speed: +7.0%
  • Army Fuel Consumption: -25.00%
  • Navy Fuel Consumption: -25.00%
  • Air Fuel Consumption: -25.00%
No modifiers "I have full confidence in your courage, devotion to duty, and skill in battle. We will accept nothing less than full victory. Good Luck!"
Regular No modifiers No modifiers "For the enemy is strong. He may hurl back our forces. Success may not come with rushing speed, but we shall return again and again."
Veteran
  • Political Power Gain: -10%
  • Production Efficiency Cap: -20.00%
  • Research Speed: -15.00%
  • Army Fuel Consumption: -25.00%
  • Navy Fuel Consumption: -25.00%
  • Air Fuel Consumption: -25.00%
"Thirty years from now when you're sitting by your fireside with your grandson on your knee and he asks 'What did you do in the great World War Two?' you won't have to cough and say, 'Well, your granddaddy shoveled shit in Louisiana.'"
Elite
  • Political Power Gain: -15%
  • Production Efficiency Cap: -30.00%
  • Research Speed: -30.00%
  • Army Fuel Consumption: -50.00%
  • Navy Fuel Consumption: -50.00%
  • Air Fuel Consumption: -50.00%
"I have nothing to offer but blood toil, tears, and sweat."

Custom settings[edit]

Custom difficulty settings are accessed with the gear icon on the difficulty panel. There is a slider bar for each of the 7 majors and China, each with the option to strengthen that country by 25%, 50%, 75% or 100% of the bonuses provided for that country. As of now, all these countries share one generic bonus profile, but this can be modded by the player to add, remove, or change the specific bonuses.

Below are the full generic modifiers:

  • Entrenchment speed: +50%
  • Planning Speed: +50%
  • Supply Consumption: –50%
  • Division Recovery Rate: +30%
  • Reinforce Rate: +4%
  • Division Attack on core territory: +30%
  • Division Defense on core territory: +30%
  • Production Efficiency Cap:+30%
  • Production Efficiency growth: +50%
  • Political Power gain: +50%
  • Research Time: –20%
  • Air Experience Gain: +50%
  • Army Experience Gain: +50%
  • Naval Experience Gain: +50%
  • Division Experience Gain: +20%
  • Ship Experience Gain: +20%

Achievement compatibility[edit]

Only difficulties "Regular" and higher are eligible for achievements.

References[edit]

  1. As of 1.7.1, videos from older versions of HoI4 appear to have three settings.