Compare Abnormal1999:SU - Unlocking the 4th Dimension prices across trusted key stores and find the best deal. Developed by QZQ Studio. Published by QZQ Studio. Released on 5/2/2024. Available on PC. Genres: Indie.

A claustrophobic deduction puzzle set inside a stranded submarine, where every cabin hides a time-warped anomaly and atmosphere does more heavy lifting than any mechanic. If you're patient enough to listen to the deep, it whispers back.

My first impression was that SU: Unlocking the 4th Dimension feels less like a game and more like a found object, the kind you stumble across at the back of a long franchise shelf and wonder why nobody talked about it. This is the third episode in QZQ Studio's Abnormal1999 series, a solo-developed sci-fi anthology built around quantum mechanics, multiverse theory, and a character named SU who can move through four-dimensional space. Each episode is self-contained enough to enter on its own terms, which matters here, because SU drops you aboard the submarine Nautilus without a lecture. The format is 2.5D deduction and puzzle play. You guide Dr. Pierre through the submarine's cabins, observing anomalies and piecing together what went wrong during the voyage. The perspective gives the game a slightly theatrical quality, corridors and rooms staged like diorama slices, and within that frame the observation-based puzzles ask you to register what is out of place before you can act on it. It is a slow, attentive loop. The anomalies themselves are tied to a time vortex concept, meaning the wrongness you are looking for often has a temporal logic rather than a purely spatial one. That layering is genuinely interesting when it clicks. It also means the game trusts you to sit with ambiguity, which is either a strength or a deal-breaker depending on your tolerance for games that hold back. The honesty check: SU is a micro-budget indie with virtually no English-language community coverage and a very small review footprint. The Abnormal1999 series as a whole leans on eerie atmosphere and tension-building sequences rather than graphic horror, and later entries in the series have earned warm receptions, but SU specifically sits in that early-episode zone where a solo developer is still finding the edges of their own vision. The 2.5D presentation is functional and deliberate rather than technically ambitious, and if you need polished environmental storytelling you may find the gaps more visible here than in later entries. A camera rotation bug was patched the day after launch, which tells you both that the developer is responsive and that this was a tight ship that launched slightly wet. Who is this actually for? Puzzle-mystery fans who appreciate the quiet genre of games that feel like reading a short story rather than playing a blockbuster. People who found something in Yume Nikki, or in any of the small atmospheric investigations that appear once on a Steam page and vanish into recommendation obscurity. The multiverse and quantum mechanics framing is earnest, not ironic, and if that registers as charm rather than overreach, you will get more out of SU than its surface suggests. At its price point it is a low-risk proposition for anyone who wants thirty to sixty minutes inside a peculiar, water-logged mystery with a quietly unsettling soundtrack. The series expands and deepens in later episodes, so think of this less as a destination and more as an invitation to a strange frequency. Kai, Scout Team

Abnormal1999:SU - Unlocking the 4th Dimension

Abnormal1999:SU - Unlocking the 4th Dimension

May 2, 2024QZQ Studio
GamerScout Says

A claustrophobic deduction puzzle set inside a stranded submarine, where every cabin hides a time-warped anomaly and atmosphere does more heavy lifting than any mechanic. If you're patient enough to listen to the deep, it whispers back.

PC
Best Price Available
€1.39
at Eneba
Lowest tracked: €1.35
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GamerScout Verdict

Best for patient mystery fans who want a low-stakes, atmospheric short-form puzzle and don't mind rough edges from a solo developer finding their footing.

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€1.39
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StandardEurope (EU)Steam KeyKey
€1.66
Priced in EUR by the store
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StandardEurope (EU)Steam KeyKey
€2.99
Priced in EUR by the store
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Price History

Lowest tracked
€1.3520 Aug 2026
Current best
€1.39
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€1.31€1.44€1.57€1.706 Jun29 Jun22 Jul14 Aug6 Sept
6 Jun — 6 Sept
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Screenshots & Media

About Abnormal1999:SU - Unlocking the 4th Dimension

My first impression was that SU: Unlocking the 4th Dimension feels less like a game and more like a found object, the kind you stumble across at the back of a long franchise shelf and wonder why nobody talked about it. This is the third episode in QZQ Studio's Abnormal1999 series, a solo-developed sci-fi anthology built around quantum mechanics, multiverse theory, and a character named SU who can move through four-dimensional space. Each episode is self-contained enough to enter on its own terms, which matters here, because SU drops you aboard the submarine Nautilus without a lecture. The format is 2.5D deduction and puzzle play. You guide Dr. Pierre through the submarine's cabins, observing anomalies and piecing together what went wrong during the voyage. The perspective gives the game a slightly theatrical quality, corridors and rooms staged like diorama slices, and within that frame the observation-based puzzles ask you to register what is out of place before you can act on it. It is a slow, attentive loop. The anomalies themselves are tied to a time vortex concept, meaning the wrongness you are looking for often has a temporal logic rather than a purely spatial one. That layering is genuinely interesting when it clicks. It also means the game trusts you to sit with ambiguity, which is either a strength or a deal-breaker depending on your tolerance for games that hold back. The honesty check: SU is a micro-budget indie with virtually no English-language community coverage and a very small review footprint. The Abnormal1999 series as a whole leans on eerie atmosphere and tension-building sequences rather than graphic horror, and later entries in the series have earned warm receptions, but SU specifically sits in that early-episode zone where a solo developer is still finding the edges of their own vision. The 2.5D presentation is functional and deliberate rather than technically ambitious, and if you need polished environmental storytelling you may find the gaps more visible here than in later entries. A camera rotation bug was patched the day after launch, which tells you both that the developer is responsive and that this was a tight ship that launched slightly wet. Who is this actually for? Puzzle-mystery fans who appreciate the quiet genre of games that feel like reading a short story rather than playing a blockbuster. People who found something in Yume Nikki, or in any of the small atmospheric investigations that appear once on a Steam page and vanish into recommendation obscurity. The multiverse and quantum mechanics framing is earnest, not ironic, and if that registers as charm rather than overreach, you will get more out of SU than its surface suggests. At its price point it is a low-risk proposition for anyone who wants thirty to sixty minutes inside a peculiar, water-logged mystery with a quietly unsettling soundtrack. The series expands and deepens in later episodes, so think of this less as a destination and more as an invitation to a strange frequency.

Kai
Kai · Scout Team

Indie & narrative

Tags

singleplayercloud-savestier:sub-5Deduction PuzzleTime VortexAtmospheric HorrorEpisode-BasedObservation MechanicsShort-Form Mystery2.5D DioramaSolo DeveloperQuantum Sci-Fi

System Requirements

Minimum

OS
Windows 10 or higher
Memory
8 GB RAM
DirectX
Version 11
Storage
6 GB available space
Graphics
GeForce GTX 660 (2048 MB) or Radeon R9 285 (2048 MB) - Integrated GPUs may work but are not supported.
Processor
Intel Core i5-2500K or AMD Athlon X4 740 (or equivalent)

Recommended

Requires a 64-bit processor and operating system

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Game Info

Developer
QZQ Studio
Publisher
QZQ Studio
Release Date
May 2, 2024

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Frequently asked questions about Abnormal1999:SU - Unlocking the 4th Dimension

How much does Abnormal1999:SU - Unlocking the 4th Dimension cost?

As of 6 September 2026, the cheapest in-stock offer for Abnormal1999:SU - Unlocking the 4th Dimension is €1.39 at Eneba, out of 3 live offers we track across verified key stores. Prices change daily — the table on this page is refreshed continuously.

Where can I buy Abnormal1999:SU - Unlocking the 4th Dimension cheapest?

The lowest in-stock price we track for Abnormal1999:SU - Unlocking the 4th Dimension is €1.39 at Eneba (6 September 2026). We compare 3 live offers from verified key stores — the full table with every store and its trust score is on this page.

What platforms is Abnormal1999:SU - Unlocking the 4th Dimension available on?

Abnormal1999:SU - Unlocking the 4th Dimension is available on PC.

When was Abnormal1999:SU - Unlocking the 4th Dimension released?

Abnormal1999:SU - Unlocking the 4th Dimension was released on 2 May 2024.

Who developed Abnormal1999:SU - Unlocking the 4th Dimension?

Abnormal1999:SU - Unlocking the 4th Dimension was developed by QZQ Studio.