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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) | 27 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.
Atrium Mortis is a psychological horror roguelite. Outsmart terrifying entities, stack run-based power-ups, and solve lethal minigames - from Red Light, Green Light to zero-g space parkour. Collect diamonds for permanent meta-upgrades. Toggle jumpscares anytime in settings.

Price now
$5.59−30% on sale, ends 2 Nov 2026
Lowest we've seen
$5.59−30%, 29 Oct 2026
Sales we've seen
1Deepest −30%, $5.59
| From | Price | Usual | Off |
|---|---|---|---|
| 29 Oct 2026 | $5.59 | $7.99 | −30% |
| 21 Oct 2026 | $7.99 | $7.99 | — |
| Sale | Length | Off | Price | Usual |
|---|---|---|---|---|
| From 29 Oct 2026On now, ends 2 Nov | 1 day | −30% | $5.59 | $7.99 |
| Poll | Players |
|---|---|
| 29 Oct, 09:42 UTC | 0 |