How much revenue did Gatekeeper make?

$346k–$929k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Gatekeeper sell?

Q: How many copies did Gatekeeper sell?

84k to 136k copies, based on its 3k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 84k–136k; $346k–$929k after Steam's cut $628k–$1.4M before Steam's cut; from 3k 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 Gatekeeper and predicted how it would do from its 8 similar games. Every figure here, including Gatekeeper's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 855k–1.3M

best case 13.9M (R.E.P.O.)

Games like Gatekeeper

A typical game among these

≈ 855k–1.3M copies

≈ $6.3M–$8.9M after Steam's cut

from ~24k reviews

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

All 8 of the similar games are hits.

These similar games lean toward the genre's biggest winners; the typical figure comes from its ordinary successes.

Best case: R.E.P.O. at ≈ 10.6M–17.2M copies, ≈ $29.1M–$78.2M 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 51k reviews in their first month; the range was 11k to 103k.

The genre you'd be entering

These games: The similar games share Co-op (5 of 8) and Rogue-lite (5 of 8).
The winners: Winners here lead with Co-op, priced around $22. The breakout hits carry Co-op; a typical game here doesn't.
When they shipped: The similar games span 2016 to 2025, and 1 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 52 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
Lost Castle / 失落城堡 2016	Est. copies ≈ 998k–1.6M SteamSpy 1M–2M	Est. revenue $2.7M–$7.4M after Steam's cut $5.0M–$11.3M before Steam's cut	$9.99	24k reviews Very Positive	4 Player LocalAction Roguelike
Gunfire Reborn 2021	Est. copies ≈ 2.6M–4.2M 4.3x vs typical SteamSpy 2M–5M	Est. revenue $14.2M–$38.1M after Steam's cut $25.7M–$58.5M before Steam's cut	$19.99	104k reviews Very Positive	Rogue-lite FPS
R.E.P.O. 2025	Est. copies ≈ 10.6M–17.2M 18x vs typical SteamSpy 10M–20M	Est. revenue $29.1M–$78.2M after Steam's cut $52.9M–$120.2M before Steam's cut	$9.99	427k reviews Overwhelmingly Positive	HorrorOnline Co-Op
嗜血印 Bloody Spell 2022	Est. copies ≈ 976k–1.6M 1.6x vs typical SteamSpy 1M–2M	Est. revenue $6.7M–$18.0M after Steam's cut $12.2M–$27.7M before Steam's cut	$24.99	39k reviews Very Positive	NuditySexual Content
Deep Rock Galactic 2020	Est. copies ≈ 9.4M–15.3M 16x vs typical SteamSpy 5M–10M	Est. revenue $77.8M–$209.2M after Steam's cut $141.5M–$321.9M before Steam's cut	$29.99	380k reviews Overwhelmingly Positive	DwarfCo-op
Roboquest 2023	Est. copies ≈ 608k–989k SteamSpy 500k–1M	Est. revenue $4.2M–$11.2M after Steam's cut $7.6M–$17.3M before Steam's cut	$24.99	25k reviews Overwhelmingly Positive	FPSAction Roguelike
Risk of Rain 2 2020	Est. copies ≈ 8.8M–14.2M 15x vs typical SteamSpy 5M–10M	Est. revenue $60.2M–$161.9M after Steam's cut $109.5M–$249.0M before Steam's cut	$24.99	353k reviews Very Positive	Third-Person ShooterAction Roguelike
Streets of Rogue 2019	Est. copies ≈ 665k–1.1M SteamSpy 1M–2M	Est. revenue $3.7M–$9.8M after Steam's cut $6.7M–$15.1M before Steam's cut	$19.99	23k reviews Overwhelmingly Positive	Rogue-liteAction Roguelike