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Quadrant

Quadrant

The year is 1979. A secret, final lunar mission has retrieved hundreds of moon rocks for study at Aether Research Facility. Overtaken by curiosity, researchers delve deeper and deeper into the unknown. Only to find a sinister and unperceivable

Released May 26, 2015 Developer HKFiftyOne Games Publisher Three Brothers Games Platforms Windows · Linux IndieHorrorSci-fiSurvival HorrorStealth
View on Steam ↗ $3.99 (US · as of 2026-05-14)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-28.

66.1%positive127 reviews
Recommended · 37 found this helpful

“Taking at least some of its cues from the simply awe-inspiring Alien Isolation, this is a sci-fi/horror/stealth game set in a world replete with "primitive", 70's-style technology (read: a heck of a lot of green screens!)...but in all fairness, the similarities by-and-largely…”

— a player, Steam review · 3 hrs played
Recommended · 23 found this helpful

“I've been waiting for the full game to come out before doing a full playthrough and writing a review. I would have rated Chapter 1 negatively itself, in it's early stages. However, playing the full game all the way through really is the only way to experience it properly. CONS:…”

— a player, Steam review · 1 hrs played
Not recommended · 68 found this helpful

“*UPDATED REVIEW* I was recently reminded to finish Quadrant and provide a more updated review for this game. It holds 3 chapters in total and asks for 5 bucks. In my previous review, I did not recommend this game and to wait for updates. The game picks up a bit better in chapter…”

— a player, Steam review · 6 hrs played
Read more reviews ↗

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-28.

6achievements
21.4%median completion
17.9%rarest: Speak the Language
50.8% of players 29.8% of players 23.4% of players 21.4% of players 19.8% of players 17.9% of players 50.8% 0% most earned rarest
Almost everyone has
50.8%Fuse Collector — Collect 10 Fuses
29.8%Recruit — Complete Chapter 1
23.4%Informed — Collect 10 Documents
Rarest badges of honor
17.9%Speak the Language — Discover the Alien Transcription
19.8%Die Hard — Complete Chapter 3
21.4%Seasoned — Complete Chapter 2

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Jan 16, 2017
Update 1.53 - Multi language support.

Greetings! We are happy to announce that we have released subtitles for the following languages: Russian German Spanish Italian Portuguese French Misc bug fixes are also included in this patch. Thank

Jan 16, 2017
Update 1.53 - Multi language support.

Greetings! We are happy to announce that we have released subtitles for the following languages: Russian German Spanish Italian Portuguese French Misc bug fixes are also included in this patch. Thank

Nov 23, 2016
Multi-Language Subtitles

Greetings! We are happy to announce that we have first pass of subtitles in the game for the following languages: Russian German Spanish Italian Portuguese French These are in Beta (Right click on Qua

Nov 23, 2016
Multi-Language Subtitles

Greetings! We are happy to announce that we have first pass of subtitles in the game for the following languages: Russian German Spanish Italian Portuguese French These are in Beta (Right click on Qua

Nov 07, 2016
Quadrant v1.5

Hello, We are pleased to announce a new patch with several great improvements! • Interact icon more visible • Multi monitor switching supported • Vertical sync option • Gameplay puzzles added • Engine

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-28.

GenresIndie
Player tagsIndie · Horror · Sci-fi · Survival Horror · Stealth · Atmospheric (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Full controller support · Family Sharing
LanguagesEnglish * , French, Italian, German, Spanish - Spain, Portuguese - Portugal, Russian *
ControllerFull support
Achievements6
Official sitehttp://www.outerorbitstudios.com/quadrant.html
Minimum system requirements (PC)

Minimum: OS *: Windows XP / Vista / 7 / 8 64 Bit Processor: 2.2 GHz Dual Core CPU Memory: 2000 MB RAM Graphics: 512 MB NVIDIA GeForce 9800GTX / ATI Radeon HD 3xxx Series DirectX: Version 9.0c Storage: 2000 MB available space Sound Card: DirectX Compatible