How many copies did Game Master Engine sell?

5k to 8k copies, based on its 208 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Game Master Engine make?

Game Master Engine is free to play, so there is no copy-sales revenue to estimate.

How big is Game Master Engine?

Estimated players who have it: ≈ 5k–8k; from 208 reviews (Mostly 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 Game Master Engine and predicted how it would do from its 8 similar games. Every figure here, including Game Master Engine's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 1.0M–1.6M

best case 1.7M (Besiege)

Games like Game Master Engine

A typical game among these

≈ 1.0M–1.6M copies

≈ $7.3M–$11.6M after Steam's cut

from ~31k 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.

No genre covers most of these similar games. The closest is Building (2 of 8), so its genre is hard to place.

Of the 416 indie games that passed 1,000 reviews in 2022, 11.8% were novel genre mixes and 88.2% stuck to an established genre. Published indie market research.

Best case: Besiege at ≈ 1.3M–2.1M copies, ≈ $5.5M–$14.7M after Steam's cut.

What their first month looked like

About half the games that made it here had over 24k reviews in their first month; the range was 2 to 38k.

The genre you'd be entering

These games: The similar games share Building (2 of 8) and Fast-Paced (2 of 8).
The winners: Winners here lead with Simulation + Sandbox, priced around $15.
When they shipped: The similar games span 2016 to 2026, and 2 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
Rhythm Doctor 2025	Est. copies ≈ 671k–1.1M SteamSpy 500k–1M	Est. revenue $3.7M–$9.9M after Steam's cut $6.7M–$15.3M before Steam's cut	$19.99	27k reviews Overwhelmingly Positive	RhythmMusic
Besiege 2020	Est. copies ≈ 1.3M–2.1M 1.7x vs typical SteamSpy 1M–2M	Est. revenue $5.5M–$14.7M after Steam's cut $9.9M–$22.6M before Steam's cut	$14.99	53k reviews Overwhelmingly Positive	SimulationSandbox
Golf It! 2023	Est. copies ≈ 772k–1.3M SteamSpy 1M–2M	Est. revenue $1.9M–$5.1M after Steam's cut $3.5M–$7.9M before Steam's cut	$8.99	31k reviews Very Positive	MultiplayerMini Golf
FitnessVR 2023	Est. copies ≈ 372–605 too small to compare SteamSpy under 20k	Est. revenue Free	Free	15 reviews Mixed	SportsVR
SpeedRunners 2016	Est. copies ≈ 1.5M–2.5M SteamSpy 2M–5M	Est. revenue $6.4M–$17.2M after Steam's cut $11.6M–$26.4M before Steam's cut	$14.99	37k reviews Very Positive	MultiplayerRacing
VTOL VR 2017	Est. copies ≈ 752k–1.2M SteamSpy 500k–1M	Est. revenue $6.2M–$16.7M after Steam's cut $11.3M–$25.7M before Steam's cut	$29.99	22k reviews Overwhelmingly Positive	FlightVR
DUSK 2018	Est. copies ≈ 778k–1.3M SteamSpy 1M–2M	Est. revenue $4.3M–$11.5M after Steam's cut $7.8M–$17.7M before Steam's cut	$19.99	26k reviews Overwhelmingly Positive	Boomer ShooterFPS
Timberborn 2026	Est. copies ≈ 1.0M–1.7M SteamSpy 1M–2M	Est. revenue $10.0M–$26.9M after Steam's cut $18.2M–$41.4M before Steam's cut	$34.99	42k reviews Overwhelmingly Positive	City BuilderVoxel