Quantum Sleeper

Quantum Sleeper

Helm Boy Studios · October 14, 2024 · Horror, Psychological Horror, Stealth, Survival Horror, Dark

Buy Quantum Sleeper from Steam at $8.99 — the cheapest of 1 store we compare.

PC
Positive100% · 24
Best price
$8.99
lowest tracked $3.59
Steam Buy at Steam

Prices last checked

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Where to buy Quantum Sleeper — official stores

Steam
Steam
Standard Edition · Steam
$8.99
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Quantum Sleeper price by region

Quantum Sleeper costs $5.79 in Georgia (USD), £7.49 in the United Kingdom, €8.79 in Europe (EUR), $8.99 in the United States, CA$11.79 in Canada, R$12.00 in Brazil, A$13.19 in Australia, NZ$13.25 in New Zealand and zł40.99 in Poland right now.

Cheapest Quantum Sleeper offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
Georgia (USD) $5.79 $5.79 — 1
United Kingdom £7.49 £7.49 — 1
Europe (EUR) €8.79 €8.79 — 1
United Statesyour region $8.99 $8.99 — 1
Canada CA$11.79 CA$11.79 — 1
Brazil R$12.00 R$12.00 — 1
Australia A$13.19 A$13.19 — 1
New Zealand NZ$13.25 NZ$13.25 — 1
Poland zł40.99 zł40.99 — 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About Quantum Sleeper

Step into the suffocating void of Research Facility G-1-6, now eerily silent after an unexplained communication blackout. As a lone operative, your mission is to reestablish contact and uncover the truth behind the disruption. Armed with the AEGIS Scanner, you’ll explore the facility’s shadowed halls, revealing hidden details and tracking what the eye cannot see. But danger lurks in the darkness, and something unknown watches from the shadows. Stay sharp, stay silent, and survive long enough to uncover what’s really going on here.Incoming Message from Command:
"Operative, this is a priority alert. Research Facility G-1-6 has gone dark. Your mission: reestablish contact and investigate the communication blackout. You're equipped with standard-issue gear, including the AEGIS-scanner and a flashlight. Primary objective: restore comms with facility management. If that's not possible, retrieve all critical research data - it's highly classified. We expect regular status updates."
Connect your Microphone to the game adding a new layer of tension and immersion as you try to stay quiet.

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AEGIS-Scanner Technology: Utilize advanced scanning equipment to reveal hidden details, track movement, and navigate in complete darkness. Swap between normal vision and AEGIS Scanner view at any time.

Stealth Gameplay: Avoid detection as you investigate the facility's secrets. Use sound and environmental cues to your advantage.

Warning: This game contains intense and sudden frights that may be dangerous for individuals with heart conditions or those prone to seizures.
We are not responsible for soiled pants

Quantum Sleeper — game info

Platforms
Windows
Player modes
Single-player
Controller
Full controller support
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Dec 15, 2024
Its a short game, but the mechanics are solid. You won't know what you're doing at times, but luckily the scanner colours things you can interact with in green. Wouldve loved this game to somehow be longer, although they'd have to fiddle with making the flashlight more useful; since the only time i used it was to check the nameplates of rooms
3 found this helpful
Recommended Mar 6, 2025
I really enjoyed this game. A new type of experience and well-executed at that. Any chance of more I wonder?
2 found this helpful
Recommended Jan 20, 2025
Very fun game, I'm a sucker for LIDAR games , honestly although removing the monster would've made it better, making it just the sounds would've acheived a similar goal, once you learn squat walking makings you 99% invisible (Don't walk into the guy) you tirvilize it anyways
2 found this helpful
Recommended Nov 28, 2024
As one of the devs I hate to admit but I cant sit through an entire playt without taking a break. Creature just loves sneaking up on me. We love watching your streams and videos. We have made a lot of changes based on things we noticed or were suggested by you. We hope to continue this story and that this introduction has hooked you!
2 found this helpful
Recommended Feb 24, 2025
So cool but I got to a point where I'd have to restart to progress. That thing kept spawning right next to me and killing me instantly every time I reloaded. But goddddddddddddddddddd I wish I could have the patience to start over, this game is INSANELY cool otherwise. Hope you all have better luck! --EDIT: After leaving this review, the developer reached out to address what I had no idea was an actual issue! I thought it was just bad luck! This game is 10000% worth the buy, especially since the dev CARES! But beyond that, they game play itself is really spooky and strangely gorgeous to experience. RECOMMEND 100%!!!! I'm gonna jump back in and enjoy every second of it! <3
1 found this helpful
Recommended Dec 29, 2024
This is Actually a Very well made game only issues i had with it is that I am too stupid to figure out where to go and how to not get killed by the enemy lurking within, I hope you all enjoy it even if I didnt.

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