ZERO PROTOCOL on Steam - User reviews, Price & Information

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In this immersive sci-fi thriller, you will experience the atmosphere of classic 3D games as you solve puzzles, follow an intriguing non-linear storyline, and engage in battles with monsters.

ZERO PROTOCOL is a survival horror, atmospheric and psychological horror game developed and published by R_Games.
Released on September 26th 2024 is available only on Windows in 4 languages: English, Russian, French and German.

It has received 367 reviews of which 317 were positive and 50 were negative resulting in a rating of 8.0 out of 10. 😎

The game is currently priced at 7.07€ on Steam with a 40% discount, but you can find it for less on Eneba.

The Steam community has classified ZERO PROTOCOL into these genres:

Survival Horror Atmospheric Psychological Horror First-Person Exploration Story Rich Multiple Endings Puzzle Stylized Sci-fi FPS Shooter Old School Horror Choices Matter 3D Pixel Graphics Adventure Singleplayer Controller

Media & Screenshots

Get an in-depth look at ZERO PROTOCOL through various videos and screenshots.

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System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows
  • OS *: Windows 7 or newer
  • Processor: Intel Core i3
  • Memory: 2048 MB RAM
  • Graphics: 512 MB graphics card with WebGL support

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

Sept. 2025
Yes! This is the essense of indie survival horror games. Borrows elements from various classics (mainly RE) and delivers! THe puzzles are relatively easy but require deduction which allows for satisfactory "aha" moments. Combat is basic but suits the game.
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May 2025
An absolute underrated gem that flew WAYYYYY under the radar! Bite-sized survival horror done perfectly. Story is The Thing and gameplay is System Shock. If you don't like either, it probably wont be for you. The only complaint I have is that the sanity meter seems arbitrary. The only thing I noticed it doing is if it dips below 50ish you can see door codes and notes that you normally couldn't see and one instance where you had to have 90 or over to see a lore note. I'm assuming you die if the sanity meter reaches 0 but there is no way you'll reach 0 considering the game spams supplies throughout the 4-5 hour runtime. So even though its a true survival horror game, it's way more puzzle-based than resource management, which I think it works in the games favor. Really enjoyed my time with this one!
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Feb. 2025
6/10; above average unpolished jank on genuine appreciation of the genre. ~5 hours for 1 playthrough (3 endings) I truly enjoyed Zero Protocols aesthetics and gameplay for what they are; it's not trying to oversell you on what it is. It's indie System Shock with references to other horror franchises. You shoot like its 1993, explore the underground lab with a flashlight (including some nice touches such as it being difficult to read notes if the light is off), solve some puzzles. All of which I was absolutely down for. And almost everything else is wasted. 85% of the plot is back-loaded at the end of the experience. The sanity mechanic was basically forgotten about starting with Ch.4. Too resource abundant to justify it being low. Too long to decrease it on purpose. Having it low really only optioned you into extra lore and unnecessary loot rooms. $12 is perfectly fair for this game.
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Feb. 2025
Pros: [*]great atmosphere reminding me of System Shock [*]surprisingly good story and lore [*]pretty cool retro visual style [*]good survival gameplay [*]majority of the puzzles is fun [*]reasonable difficulty [*]the occasional jumpscares are not very scary, which is a good thing Cons: [*]too many cheap ambushes, with enemies appearing out of a thin air [*]healing items are scarce in certain areas [*]those damn spiders are extremely annoying and unfun [*]all of the above forces me to abuse the save system, reloading every time the combat goes wrong So yes, this is a great survival horror game, only the combat could use some rebalancing and tweaks. Recommended!
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Dec. 2024
Zero Protocol - maximum effect. A terrific little horror shooter with non-linear storytelling, clearly inspired by the original System Shock going by its lo-fi graphical style, which is pulled off superbly. You start off exploring small rooms, scavenging medical and weapons supplies, fighting monsters such as zombies and spiders, and going on to solve some really involving puzzles that require thorough exploration of each floor. You can either build a mental picture of the map, or find a navigation terminal on each floor. The game is structured somewhere between linear and freeform. Each floor is kind of like a mini-System Shock map, but progress is often streamlined by the need to keep hunting for keycards or access codes to open up more areas for yourself. This actually works, with steadily building tension as you are never sure of what awaits you on the other side of every door. But once you've opened up the whole map, you can explore any way you like. The guns - a handgun and a shotgun - feel great when they hit, but are not terribly accurate, and you'll probably end up wasting a lot of bullets. You can melee attack if you want, which is risky as a single hit from a monster takes a whole 1 out of every 5 health bars from you. But this varied combat, combined with inventory management, and the ability to shoot locks off gates if you can't find the key, moves this small, ambitious game nearly into immersive sim territory. The story is involving, although I'm guessing I didn't experience all of it as there are some areas or rooms that I wasn't available to access, and I didn't get all of the achievements, which hints at some unexplored territory and some replay value. The game isn't too difficult, with plenty of resources available if you don't rush things. The only major criticism I have is that the main villain, who you encounter late on, isn't nearly as frightening or foreboding as SHODAN, for example. But nevermind, it's only a 5-hour long game, so you'll have plenty of fun while it lasts.
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Frequently Asked Questions

ZERO PROTOCOL is currently priced at 7.07€ on Steam.

ZERO PROTOCOL is currently available at a 40% discount. You can purchase it for 7.07€ on Steam.

ZERO PROTOCOL received 317 positive votes out of a total of 367 achieving a rating of 8.02.
😎

ZERO PROTOCOL was developed and published by R_Games.

ZERO PROTOCOL is playable and fully supported on Windows.

ZERO PROTOCOL is not playable on MacOS.

ZERO PROTOCOL is not playable on Linux.

ZERO PROTOCOL is a single-player game.

ZERO PROTOCOL does not currently offer any DLC.

ZERO PROTOCOL does not support mods via Steam Workshop.

ZERO PROTOCOL does not support Steam Remote Play.

ZERO PROTOCOL is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.

You can find solutions or submit a support ticket by visiting the Steam Support page for ZERO PROTOCOL.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates
Steam data 29 October 2025 17:05
SteamSpy data 26 October 2025 08:47
Steam price 29 October 2025 12:51
Steam reviews 28 October 2025 11:47

If you'd like to dive deeper into the details about ZERO PROTOCOL, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

  • SteamDB - A comprehensive database of everything on Steam about ZERO PROTOCOL
  • SteamCharts - Analysis of ZERO PROTOCOL concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck ZERO PROTOCOL compatibility
ZERO PROTOCOL
-40% 11.79€ 7.07€ Buy Now 🔥 Deal Show Price Show Price
Rating
8.0
317
50
Game modes
Features
Online players
2
Developer
R_Games
Publisher
R_Games
Release 26 Sep 2024
Platforms
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