Steam game

Rule of Iron: Dark Age

Build your realm in a turn-based campaign. Break theirs in battle. Real-time, 1:1-scale warfare where tactics, not spreadsheets, win clashes between tens of thousands of soldiers.

Coming soon 2026

By Eisengeist Studio

Windows
View on Steam
Rule of Iron: Dark Age - Eisengeist Studio. Popular. Released 2026
Screenshot of Rule of Iron: Dark Age gameplay showing in-action mechanics Screenshot 2 of Rule of Iron: Dark Age - additional gameplay view Screenshot 3 of Rule of Iron: Dark Age - more gameplay footage Screenshot 4 of Rule of Iron: Dark Age - final gameplay screenshot

Overview

About this game

Campaign

  • A real population system with different classes. Recruiting subtracts from the population class and disbanding adds to it. Plagues wipe out.

  • No building slot limitations.

  • No locked minor provinces, a village can grow into a metropolis.

  • No magic 20-unit hard limit per army.

  • Armies don't need a general. Split them up and move them freely.

  • Armies need ship units to move across water. They don't magically spawn transport ships.

  • A Crusader Kings style character system with traits and opinions.

  • This includes vassalage. If you let your vassals dislike you or become too ambitious they will declare independence and wage war against you. This also applies to AI factions.

  • Character-based diplomacy. For example arrange marriages to secure alliances.

  • Only characters can become agents. This reduces agent spam while they can still move around on the map.

  • No skill trees. Traits are gained organically.

  • No gamey tech trees either. Technology happens historically at certain turn thresholds.

  • Road upgrades are visible on the map.

  • Visible trade carts and ships reflect your trade income.

  • Innovative UI to reduce late-game micromanagement.

Battle

  • The battle terrain is generated exactly from the campaign map features.

  • Historical scale featuring battles reaching tens of thousands of soldiers.

  • The most sophisticated physics system ever seen in a battle simulator leveraging SPH to simulate a shifting battle line.

  • Morale, fatigue, high ground and flanking as first-class systems. A skilled general can defeat an on paper superior army with ingenious tactics.

  • Archers and other units range depends on their relative altitude to the target.

  • A per soldier line of sight system paired with a per missile collision system where trees, buildings and other objects block missiles.

  • No canned pair animations, combat outcomes depend on the position and rotation of the soldier at the time of the strike.

Modding support

  • Create entirely new campaigns including the map. The code will generate features like rivers or castles where you tell it to.

  • Create new units, even fantasy creatures with custom rigs.

  • Adjust the UI to your taste.

  • Tune the AI.

No gimmicks, no anti-player gangup, no bloated mechanics mess, no superheroes. Tactical depth paired with immersive empire-building.

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