How many copies did Otaku Engine sell?

521 to 846 copies, based on its 21 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Otaku Engine make?

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

How big is Otaku Engine?

Estimated players who have it: ≈ 521–846; from 21 reviews (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 Otaku Engine and predicted how it would do from its 8 similar games. Every figure here, including Otaku Engine's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 1.0M–1.8M

best case 5.4M (BattleBlock Theater®)

Games like Otaku Engine

A typical game among these

≈ 1.0M–1.8M copies

≈ $3.8M–$14.3M after Steam's cut

from ~28k 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.

Best case: BattleBlock Theater® at ≈ 4.1M–6.6M copies, ≈ $16.8M–$45.3M after Steam's cut.

What their first month looked like

About half the games that made it here had over 26k reviews in their first month; the range was 960 to 38k.

The genre you'd be entering

These games: The similar games share Sandbox (5 of 8) and Building (4 of 8).
The winners: Winners here lead with Co-op + Platformer, priced around $15.
When they shipped: The similar games span 2008 to 2026, 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 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
Forts 2017	Est. copies ≈ 876k–1.4M SteamSpy 1M–2M	Est. revenue $3.6M–$9.7M after Steam's cut $6.6M–$14.9M before Steam's cut	$14.99	25k reviews Very Positive	Base-BuildingMultiplayer
Poly Bridge 2016	Est. copies ≈ 788k–1.3M SteamSpy 500k–1M	Est. revenue $2.2M–$5.8M after Steam's cut $3.9M–$9.0M before Steam's cut	$9.99	19k reviews Very Positive	BuildingSimulation
BattleBlock Theater® 2014	Est. copies ≈ 4.1M–6.6M 2.6x vs typical SteamSpy 2M–5M	Est. revenue $16.8M–$45.3M after Steam's cut $30.6M–$69.6M before Steam's cut	$14.99	73k reviews Overwhelmingly Positive	Co-op Platformer
Besiege 2020	Est. copies ≈ 1.3M–2.1M 1.9x 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
TrackMania Nations Forever 2008	Est. copies ≈ 1.5M–2.5M SteamSpy 2M–5M	Est. revenue Free	Free	24k reviews Very Positive	RacingFree to Play
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
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
GoreBox 2023	Est. copies ≈ 632k–1.0M SteamSpy 500k–1M	Est. revenue $1.6M–$4.2M after Steam's cut $2.8M–$6.5M before Steam's cut	$8.99	26k reviews Very Positive	GoreSandbox