A biopunk action roguelite where you fight through procedurally generated combat arenas, upgrade your abilities between runs, and push deeper into a hostile alien-infected facility with every attempt.

This game is marked as 'Adult Only'. You are seeing this game because you have set your preferences to allow this content.

Edit your preferences

Sign in to add this item to your wishlist, follow it, or mark it as ignored

Check out the entire Entropy Digital Games collection on Steam
This game is not yet available on Steam

Planned Release Date: Jul 17, 2026

This game plans to unlock in approximately 8 weeks

Interested?
Add to your wishlist and get notified when it becomes available.
 

Mature Content Description

The developers describe the content like this:

Explicit and frequent depictions of Penetrative sex acts
full nudity
male and female ejaculation

About This Game

BREACH PROTOCOL

The facility has gone dark. The corporation wants answers. You want out alive.

Breach Protocol is a biopunk action roguelite that throws you into the heart of a research installation consumed by an alien biomass that has rewritten the rules of biology, architecture, and loyalty. Every run is a descent into procedurally generated combat arenas where positioning, resource management, and split-second decision-making determine whether you extract with your life — or become part of the infestation.

FAST, BRUTAL COMBAT Fight through waves of increasingly dangerous enemies using a fluid isometric combat system built for aggressive play. No hiding. No waiting. The biomass rewards pressure and punishes hesitation. Master your loadout, exploit enemy weaknesses, and push the arena to its limits before it pushes back.

BUILD YOUR RUN Every arena cleared is a chance to evolve. Choose upgrades, unlock new abilities, and construct synergies that compound with each room you conquer. No two runs play alike — and no two players will build alike either.

A HUB WORTH RETURNING TO Between runs, retreat to the last safe pocket of the facility where six survivors have made an uneasy home. Each carries their own history with the corporation, the biomass, and you. Deepen those relationships to unlock permanent upgrades, new narrative paths, and content that changes what you find in the depths.

THE FACILITY REMEMBERS The deeper you push, the more the facility adapts. Enemy compositions evolve. New threats emerge from the biomass. The architecture itself becomes hostile. Death is not the end — it is data. Every run teaches you something the next one will demand you apply.

FEATURES

  • Isometric action roguelite combat with a deep upgrade and synergy system

  • Procedurally generated arena layouts with escalating threat tiers

  • Six unique hub characters with branching relationship systems and unlockable content

  • Biopunk aesthetic blending hard sci-fi architecture with organic alien infestation

  • Adult content reflecting the brutal, intimate, and morally complex world of the facility

  • Persistent meta-progression that carries the weight of every failed run forward

The corporation sent you in to find out what happened. Now you know. The question is whether you can survive long enough for it to matter.

BREACH IN. FIGHT THROUGH. GET OUT.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Artists were aided in creating some promotional content and digital art with the aif of AI image generation and mesh builder tools

System Requirements

    Minimum:
    • OS: Windows 10 or higher
    • Processor: 1.8 Ghz equivalent or greater
    • Memory: 8 GB RAM
    • Graphics: Nvidia GeForce 1080 and higher ; ATI radeon RX and higher
    • Storage: 3 GB available space
    • Sound Card: integrated or higher
    Recommended:
    • OS: Windows 10 or higher
    • Processor: 2.4 Ghz equivalent or greater
    • Memory: 16 GB RAM
    • Graphics: NVIDIA GTX 1080 equivalent or greater ; ATI radeon RX and higher
    • Storage: 3 GB available space
    • Sound Card: integrated or higher
There are no reviews for this product

You can write your own review for this product to share your experience with the community. Use the area above the purchase buttons on this page to write your review.