59%Good matchIratus: Lord of the Dead
85%7k85% positive reviews, Very Positive across 7k reviews·Turn-Based Combat · Roguelike
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IRSEN is a turn-based roguelite where your character fights alone against coordinated enemy squads. Build your hero through a gene system, reshape your abilities mid-run, and endure the growing pressure of corruption.
Irsen
SteamIRSEN is a turn-based roguelite where your character fights alone against coordinated enemy squads.
Explore procedurally generated dungeons, collect genes from defeated enemies, unlock new skills, and reshape your build during each run.

Develop your character through the gene system: combine genes, form gene chains, unlock new skills, and modify their properties.
Corruption builds up over the course of a run. The deeper you descend, the stronger its influence becomes: your character gains mutations, and full overload means death.

In each squad, enemies perform different roles and act together:
The combat system rewards thoughtful decisions: target selection, action order, and effective use of skills determine your survival.

Each run is built around adapting your character:
In the standard mode, you can reshape your build during a run using the Gene Lab, adapting skill properties to fit your strategy.
In Iron Will mode, skill properties remain random: you must build around what you manage to find and adapt to the flow of the run.

Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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