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Sector Unknown
Sector Unknown is a solo-developed, isometric sci-fi RPG set in a shadowy expanse of space. Begin on a desolate planet, establish a stronghold, explore space, ally with or dominate local factions, and combat a despotic organization set on ruthlessly exploiting the sector's resources and inhabitants.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-25.
“I can bet that developers played "Stellar tactics", were not satisfied with the result and decided to create their own "Stellar tactics". With hookers and blackjack!”
— a player, Steam review · 45 hrs played“I'm absolutely loving this game so far. This is exactly the kind of cRPG I want to play. It feels strongly of Fallout 1 plus having a party to back you up. It's extremely apparent that the dev has a deep love and appreciation for cPRGs. If you're a junkie like me, you will love…”
— a player, Steam review · 18 hrs played“This is sloppily written garbage. The third room you encounter you can get stuck in and there's no way out? Get real.”
— a player, Steam review · 1 hrs playedAchievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-26. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Version 2.4.5
Small update: Fixed a bug on Sjo at the desalination facility - if using computers to neutralize the boss robot there, this would potentially break the main quest. Thanks again for all your feedback.
Version 2.4.4
Small update: Fixed several dialogue typos and text inconsistencies. Fixed missing materials in the Nabi Power Facility. Fixed an incorrect skill check during the Clever Hans conversation. Fixed missi
Version 2.4.3
Small update: Increased keyboard camera rotation speed. Fixed an issue where the loading screen could briefly display top navigation bars before the scene had fully loaded. Fixed an occasional issue w
Version 2.4.2
Small update: Fixed an issue where fallen companions could still be looted after combat. Fixed a bug preventing pirate combat from properly triggering on Eremtera after terminating Captain Moreland’s
Version 2.4.1
Updates: You can now click character portraits during combat to instantly center the camera on that character Optimized NPC management in scenes for improved performance and higher FPS Further XP bala
Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-25.
| Genres | RPG |
| Player tags | RPG · Tactical RPG · Isometric · Character Customization · CRPG · Story Rich · Turn-Based Combat · Choices Matter · Multiple Endings · Exploration · Dialogue Heavy · Space (Steam store community voting) |
| Features | Single-player · Steam Achievements · DualShock Controller Support · DualShock Controller Support · DualSense Controller Support · DualSense Controller Support · Partial Controller Support · Steam Cloud |
| Languages | English, French, German, Polish, Russian, Simplified Chinese, Portuguese - Brazil, Spanish - Latin America |
| Achievements | 55 |
Minimum system requirements (PC)
Minimum: OS: Windows 10 64-bit Processor: Intel i5-4460 / AMD FX-8350 Memory: 8 GB RAM Graphics: NVIDIA GTX 960 (4GB) / AMD RX 470 (4GB) Storage: 22 GB available space Additional Notes: SSD Recommended