SU

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SU is a 2.5D deduction puzzle game. The submarine Nautilus suffers a mechanical failure during its voyage. Dr. Pierre investigates and finds anomalies in every area. Explore the deep blue depths, follow Dr. Pierre as he unravels the secrets of the Nautilus.

Developer: QZQ Studio
Released: 2 May 2024
Price: $2.99
Platforms
Languages: English +3
Series: Abnormal1999

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Players on Steam, last 48 hours

Updates News

Steam concurrent players, polled every 30 days. We began tracking this game on 26 Oct 2026, so this range has no readings before then yet. As of 16:26 UTC.

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Players of SU, last 48 hours, newest first
Poll	Players
00:07 UTC	0

How this is measured

Player counts over time, as we observed them.

Counts people running the game through Steam only. Players on other stores, consoles or launchers are not included.
We poll the busiest games every 15 minutes and quiet ones as rarely as once a month, so a short spike between polls can be missed. Each game shows how often it is polled.
Our player history starts on 19 October 2026. Earlier peaks, including launch peaks, are not in our data.

Source: Steam Web API, ISteamUserStats/GetNumberOfCurrentPlayers. Full methodology

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SU

Players on Steam, last 48 hours

SU

Players on Steam, last 48 hours

Players By Month

Players By Month