How much revenue did SENTRY make?

$124k–$334k 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?

23k to 37k copies, based on its 911 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 23k–37k; $124k–$334k after Steam's cut $226k–$514k before Steam's cut; from 911 reviews (Very Positive)

Copies are estimated from the public review count, adjusted for release year, and cross-checked against SteamSpy's own estimate.

Did the prediction match what actually happened?

We hid SENTRY and predicted how it would do from its 8 similar games. Every figure here, including SENTRY's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 48k–403k

best case 13.1M (7 Days to Die)

Games like SENTRY

A typical game among these

≈ 48k–403k copies

≈ $155k–$4.3M after Steam's cut

from ~2k reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

7 of the 8 similar games are hits.

Best case: 7 Days to Die at ≈ 9.9M–16.2M copies, ≈ $123.1M–$331.0M after Steam's cut. It is a breakout hit, far above a typical game.

What their first month looked like

About half the games that made it here had over 10k reviews in their first month; the range was 515 to 327k.

The genre you'd be entering

These games: The similar games share 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.
When they shipped: The similar games span 2000 to 2024, and 3 of the 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 ≈ 910k–1.5M 6.4x vs typical SteamSpy 2M–5M	Est. revenue $3.7M–$10.1M after Steam's cut $6.8M–$15.5M before Steam's cut	$14.99	14k reviews Very Positive	Tower Defense FPS
Counter-Strike 2000	Est. copies ≈ 16.6M–26.9M 117x vs typical SteamSpy 10M–20M	Est. revenue $45.5M–$122.3M after Steam's cut $82.7M–$188.1M before Steam's cut	$9.99	262k reviews Overwhelmingly Positive	ActionFPS
Sanctum 2011	Est. copies ≈ 213k–345k 1.5x vs typical SteamSpy 1M–2M	Est. revenue $584k–$1.6M after Steam's cut $1.1M–$2.4M before Steam's 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 $39k–$88k before Steam's 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–$347k before Steam's cut	$9.99	735 reviews Very Positive	VRTower Defense
Outpost: Infinity Siege 2024	Est. copies ≈ 338k–550k 6.1x vs typical SteamSpy 200k–500k	Est. revenue $2.3M–$6.2M after Steam's cut $4.2M–$9.6M before Steam's 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–16.2M 179x vs typical SteamSpy 10M–20M	Est. revenue $123.1M–$331.0M after Steam's cut $223.8M–$509.2M before Steam's cut	$44.99	401k reviews Very Positive	SurvivalZombies