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wishvane

How many copies did Poly Bridge sell?

Estimated copies sold
≈ 786k–1.3M
$2.2M–$5.8M after Steam's cut $3.9M–$8.9M before the cut
from 19k 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 Poly Bridge out and predicted the genre from its 8 similar games. Every figure here, including Poly Bridge's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 1.8M–1.9M
best case 104.7M (Garry's Mod)
Games like Poly Bridge

The middle of these games

≈ 1.8M–1.9M copies

≈ $12.5M–$16.9M after Steam's cut

from ~59k reviews

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

All 8 of your similar games are hits.

Your picks lean toward this genre's biggest survivors; the typical figure reads from its ordinary successes.

Best case: Garry's Mod at ≈ 79.8M–129.6M copies, ≈ $219.1M–$589.2M 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 31k reviews in their first month; the spread ran 11k to 122k.
The genre you'd be entering
Your set
Your set clusters on Sandbox (8 of 8) and Building (7 of 8).
The winners
Winners here lead with Sandbox, priced around $20.
The era
The games you compared span 2006 to 2026, and 1 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

Garry's Mod
2006
Est. copies
≈ 79.8M–129.6M
21x vs typical
SteamSpy 20M–50M
Est. revenue
$219.1M–$589.2M after Steam's cut $398.4M–$906.5M before the cut
$9.99
1.3M reviews
Overwhelmingly Positive
SandboxModdable
Space Engineers
2019
Est. copies
≈ 3.9M–6.3M
2.3x vs typical
SteamSpy 2M–5M
Est. revenue
$21.3M–$57.2M after Steam's cut $38.7M–$88.0M before the cut
$19.99
134k reviews
Very Positive
SpaceSandbox
People Playground
2019
Est. copies
≈ 9.1M–14.9M
5.4x vs typical
SteamSpy 5M–10M
Est. revenue
$25.1M–$67.5M after Steam's cut $45.7M–$103.9M before the cut
$9.99
317k reviews
Overwhelmingly Positive
SandboxGore
Kerbal Space Program
2015
Est. copies
≈ 7.1M–11.6M
2.5x vs typical
SteamSpy 2M–5M
Est. revenue
$78.6M–$211.3M after Steam's cut $142.9M–$325.1M before the cut
$39.99
146k reviews
Overwhelmingly Positive
SpaceSimulation
Scrap Mechanic
2026
Est. copies
≈ 3.0M–4.9M
2.1x vs typical
SteamSpy 2M–5M
Est. revenue
$24.2M–$65.0M after Steam's cut $43.9M–$100.0M before the cut
$28.99
122k reviews
Very Positive
BuildingSandbox
Besiege
2020
Est. copies
≈ 1.3M–2.1M
SteamSpy 1M–2M
Est. revenue
$5.4M–$14.6M after Steam's cut $9.9M–$22.5M before the cut
$14.99
53k reviews
Overwhelmingly Positive
SimulationSandbox
Stormworks: Build and Rescue
2020
Est. copies
≈ 1.5M–2.4M
SteamSpy 1M–2M
Est. revenue
$10.2M–$27.4M after Steam's cut $18.5M–$42.2M before the cut
$24.99
60k reviews
Very Positive
SandboxBase-Building
Brick Rigs
2023
Est. copies
≈ 1.5M–2.4M
SteamSpy 1M–2M
Est. revenue
$8.1M–$21.7M after Steam's cut $14.7M–$33.4M before the cut
$19.99
59k reviews
Very Positive
SandboxDestruction

Sizing up your own game? See what its genre can realistically do before you build it.