
As of
30-day average
6 players18 of 30 days observed
| Data | Collected | Observed since | Last success |
|---|---|---|---|
| News and patch notes | Every 12 hours (warm tier) | 22 Oct 2026 | |
| Player counts | Every 4 hours (warm tier) | 19 Oct 2026 | |
| Store details | Every 3 hours, and when Steam reports a change (warm tier) | 19 Oct 2026 |
Busier games are polled more often. Source: Steam Web API. Not affiliated with Valve.
SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.

Price now
$15.99−20% on sale, ends 16 Nov 2026
Lowest we've seen
$15.99−20%, 2 Nov 2026
Sales we've seen
1Deepest −20%, $15.99
| From | Price | Usual | Off |
|---|---|---|---|
| 2 Nov 2026 | $15.99 | $19.99 | −20% |
| 22 Oct 2026 | $19.99 | $19.99 | — |
| Sale | Length | Off | Price | Usual |
|---|---|---|---|---|
| From 2 Nov 2026On now, ends 16 Nov | 3 days | −20% | $15.99 | $19.99 |
−20% sale on now: So far players have averaged 94% more than the week before.
| Sale | Off | During | Change |
|---|---|---|---|
| From 2 Nov 2026On now | −20% | 10+94% | On now |
Average players from our own counts over the 7 days before each sale, while it ran, and the 7 days after, kept clear of the sales either side. Steam’s big seasonal sales lift the whole store, so not every rise is this discount alone. How we count
| Poll | Players |
|---|---|
| 12:53 UTC | 9 |
| 08:51 UTC | 11 |
| 04:50 UTC | 9 |
| 00:49 UTC | 14 |
| 4 Nov, 20:48 UTC | 13 |
| 4 Nov, 16:47 UTC | 9 |
| 4 Nov, 12:44 UTC | 7 |
| 4 Nov, 08:42 UTC | 9 |
| 4 Nov, 04:40 UTC | 15 |
| 4 Nov, 00:39 UTC | 13 |
| 3 Nov, 20:36 UTC | 13 |