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As of
30-day average
0 players2 of 30 days observed
| Data | Collected | Observed since | Last success |
|---|---|---|---|
| News and patch notes | Every 30 days (dormant tier) | 28 Oct 2026 | |
| Player counts | Every 30 days (dormant tier) | 24 Oct 2026 | |
| 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.
15th Prison is a horror escape game. There is no exit from this prison. But examine your surroundings carefully and do not ignore any abnormalities. Take the envelope in each block and move on. Your carelessness may result in death.

Price now
$3.99Usual price
Lowest we've seen
$2.79−30%, 29 Oct 2026
Sales we've seen
1Deepest −30%, $2.79
| From | Price | Usual | Off |
|---|---|---|---|
| 8 Nov 2026 | $3.99 | $3.99 | — |
| 29 Oct 2026 | $2.79 | $3.99 | −30% |
| 22 Oct 2026 | $3.99 | $3.99 | — |
| Sale | Length | Off | Price | Usual |
|---|---|---|---|---|
| 29 Oct – 2 Nov 2026 | 4 days | −30% | $2.79 | $3.99 |