Banner of Inferno Protocol

Inferno Protocol

by Tektonic Interactive · 28 Aug, 2026

25 downloads

Update Available
2.9 GB
2 weeks ago
3 days ago
CSF + Goldberg

About the Game

INFERNO PROTOCOL is a co-op survival horror set in a maze that does not stay still. There is no map you can trust. No corridor you can return to the way you came. You'll mark the walls, harvest the things that hunt you, and inject yourself with things that may save you or rewrite you. Solo or up to 6 players. Somewhere in here, there's a way out.

The maze does not stay still. The corridor you came from won't be the corridor you go back through.

Spray the walls. Drop chalk. Leave objects behind. Find old hand-drawn paper maps and figure out which ones are lying. A compass helps, until it doesn't. Remember: Memory is your map. Marks are your guide.

The maze keeps changing. Corridors give way to forests, deserts, frozen halls, places that shouldn't be underground.

Others walked here before you. Notes, scratched-out warnings, sketches on the walls, most of it panic, some of it useful. A few point to injectors. A few point to exits. A few point to things you shouldn't go near. Whoever left them isn't around to ask.

People live in here. Not many.

There's a settlement at the center where you can farm, build walls, and craft what you need. Outside it, smaller camps survive in the corridors. Some will talk, some will trade, some won't wait for you to draw first.

The rules of the maze cost more than ammo.

Resources are scarce. Scrap metal and frayed wires will only get you so far. When you take down a creature, harvest what remains, bones, armor, flesh, organs. It's grim work, and the maze doesn't care.

Find traps or craft your own. Plant them in the corridors, back off, and let the maze do the rest.

You will find injectors. The deeper you go, the more you'll need them. Some are labeled: dash, rage,
night vision, double jump, extra health. Others aren't labeled at all, and you'll use those too, sooner or later.

Screenshots

15 images
Inferno Protocol screenshot 1
Inferno Protocol screenshot 2
Inferno Protocol screenshot 3
Inferno Protocol screenshot 4
Inferno Protocol screenshot 5
Inferno Protocol screenshot 6
Inferno Protocol screenshot 7
Inferno Protocol screenshot 8
Inferno Protocol screenshot 9
Inferno Protocol screenshot 10
Inferno Protocol screenshot 11
Inferno Protocol screenshot 12
Inferno Protocol screenshot 13
Inferno Protocol screenshot 14
Inferno Protocol screenshot 15

Version Information

Update Required

Latest on Steam

SteamDB

Build 25302974

Released Sep 14, 2026

Current Release

Build 25242802

Uploaded Sep 11, 2026

Update already requested

Uploaders have been notified

A newer version is available but not yet uploaded

Help keep this updated

Login Required

You need to be logged in to request game updates. Would you like to go to the login page?

Request Update

Request an update for Inferno Protocol? This will notify uploaders that this game has an available update.

Request Submitted

Your update request has been submitted successfully! Uploaders will be notified.

Request Failed

Failed to submit update request:

System Requirements

OS Windows 10
CPU Core i5 6600
RAM 6 GB RAM
GPU Nvidia GTX 750ti

How to Install

1
Download all files
2
Extract the .ZIP file to a folder (use WinRAR or 7-Zip)
3
Run Inferno Protocol.exe to play
Troubleshooting tips

• Run Redist/_CommonRedist installers if game won't start

• Add folder to Windows Defender exclusions

• Run as administrator

Download

Direct link available

Archive password

Needed when extracting (WinRAR / 7-Zip) — not a site login.

You May Also Like

View All

Download Inferno Protocol for PC with a direct link or via torrent. Get the full version of Inferno Protocol for free. Inferno Protocol is a Action released by Tektonic Interactive.

Need help with installation or downloads?

Check our FAQ for common issues like passwords, extraction errors, and more.