How much revenue did SENTRY make?

$122k–$328k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did SENTRY sell?

Q: How many copies did SENTRY sell?

22k to 36k copies, based on its 894 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 22k–36k; $122k–$328k after Steam's cut $222k–$504k before the cut; from 894 reviews (Very Positive)

A labeled estimate from the public review count (adjusted for release year), not exact sales. Owner data cross-checked with SteamSpy.

Does this actually work?

We left SENTRY out and predicted the genre from its 8 similar games. Every figure here, including SENTRY's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 48k–402k

best case 13.0M (7 Days to Die)

Games like SENTRY

The middle of these games

≈ 48k–402k copies

≈ $155k–$4.3M after Steam's cut

from ~2k reviews

Only the top fifth of 2019’s Steam releases earned about $34k gross, so plan for that or less.

7 of your 8 similar games are hits.

Best case: 7 Days to Die at ≈ 9.9M–16.1M copies, ≈ $122.7M–$330.0M after Steam's cut. A breakout hit, far above a typical game.

What it took to get here

About half the games that made it here had over 10k reviews in their first month; the spread ran 517 to 327k.

The genre you'd be entering

Your set: Your set clusters on FPS (6 of 8) and Tower Defense (5 of 8).
The winners: Winners here lead with FPS + Shooter, priced around $27. The breakout hits carry Multiplayer + Classic + Team-Based; a typical game here doesn't.
The era: The games you compared span 2000 to 2024, and 3 of your 8 shipped in the last two years.

How these numbers were worked out

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

Copies come from each game's reviews times a sales-per-review rate that falls with release age, from about 31 for the most recent game here to about 79 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

Similar games

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Sanctum 2 2013	Est. copies ≈ 909k–1.5M 6.4x vs typical SteamSpy 2M–5M	Est. revenue $3.7M–$10.1M after Steam's cut $6.8M–$15.5M before the cut	$14.99	14k reviews Very Positive	Tower Defense FPS
Counter-Strike 2000	Est. copies ≈ 16.5M–26.8M 117x vs typical SteamSpy 10M–20M	Est. revenue $45.4M–$122.0M after Steam's cut $82.5M–$187.7M before the cut	$9.99	261k reviews Overwhelmingly Positive	ActionFPS
Sanctum 2011	Est. copies ≈ 212k–345k 1.5x vs typical SteamSpy 1M–2M	Est. revenue $583k–$1.6M after Steam's cut $1.1M–$2.4M before the cut	$9.99	3k reviews Very Positive	Tower Defense FPS
KUNKUN Defender 2024	Est. copies ≈ 26k–42k SteamSpy under 20k	Est. revenue $21k–$57k after Steam's cut $38k–$87k before the cut	$2.99	1k reviews Overwhelmingly Positive	Horror Psychological Horror
Out of Ammo 2016	Est. copies ≈ 31k–50k SteamSpy 50k–100k	Est. revenue $84k–$226k after Steam's cut $153k–$348k before the cut	$9.99	736 reviews Very Positive	VRTower Defense
Outpost: Infinity Siege 2024	Est. copies ≈ 338k–549k 6.1x vs typical SteamSpy 200k–500k	Est. revenue $2.3M–$6.2M after Steam's cut $4.2M–$9.6M before the cut	$24.99	14k reviews Mixed	Robots3D
EDEN STAR 2015	Est. copies ≈ 55k–89k SteamSpy 50k–100k	Est. revenue Free	Free	1k reviews Mixed	SurvivalBase-Building
7 Days to Die 2024	Est. copies ≈ 9.9M–16.1M 179x vs typical SteamSpy 10M–20M	Est. revenue $122.7M–$330.0M after Steam's cut $223.1M–$507.7M before the cut	$44.99	400k reviews Very Positive	SurvivalZombies