SUSteam players
As of —
Players, last 48 hours30-day average
—No reading yet
Polled every 30 days
Data coverage| Data | Collected | Observed since | Last success |
|---|---|---|---|
| News and patch notes | Every 30 days (dormant tier) | — | — |
| Player counts | Every 30 days (dormant tier) | — | — |
| Store details | Weekly, and when Steam reports a change | 19 Oct 2026 |
Busier games are polled more often. Source: Steam Web API. Not affiliated with Valve.
Price HistoryPrice now
$2.99Usual price
Lowest we've seen
$2.9922 Oct 2026
Last on sale
Not yetNone since 21 Oct 2026
| From | Price | Usual | Off |
|---|---|---|---|
| 22 Oct 2026 | $2.99 | $2.99 | — |
US Steam store prices, saved each time our store check sees a change, since 21 Oct 2026. How we count
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.
