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How many copies did Newton's Fourth Law sell?

Estimated copies sold
≈ 6k–9k
$19k–$50k after Steam's cut $34k–$77k before the cut
from 227 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 Newton's Fourth Law out and predicted the genre from its 8 similar games. Every figure here, including Newton's Fourth Law's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 136k–415k
best case 1.0M (Poly Bridge)
Games like Newton's Fourth Law

The middle of these games

≈ 136k–415k copies

≈ $251k–$1.4M after Steam's cut

from ~6k reviews

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

7 of your 8 similar games are hits.

Best case: Poly Bridge at ≈ 786k–1.3M copies, ≈ $2.2M–$5.8M after Steam's cut.

What it took to get here
About half the games that made it here had over 708 reviews in their first month; the spread ran 175 to 743.
The genre you'd be entering
Your set
Your set clusters on Puzzle (8 of 8) and Physics (6 of 8).
The winners
Winners here lead with Building + Simulation, priced around $10.
The era
The games you compared span 2009 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

Noun Town Language Learning
2026
Est. copies
≈ 19k–30k
SteamSpy 20k–50k
Est. revenue
$102k–$275k after Steam's cut $186k–$423k before the cut
$19.99
751 reviews
Very Positive
Early AccessPuzzle
Zup! S
2018
Est. copies
≈ 492k–799k
2.7x vs typical
SteamSpy 200k–500k
Est. revenue
$269k–$723k after Steam's cut $489k–$1.1M before the cut
$1.99
16k reviews
Overwhelmingly Positive
PuzzleCasual
Osmos
2009
Est. copies
≈ 91k–148k
SteamSpy 200k–500k
Est. revenue
$250k–$673k after Steam's cut $455k–$1.0M before the cut
$9.99
1k reviews
Very Positive
IndieCasual
Poly Bridge 2
2020
Est. copies
≈ 204k–332k
SteamSpy 200k–500k
Est. revenue
$842k–$2.3M after Steam's cut $1.5M–$3.5M before the cut
$14.99
8k reviews
Overwhelmingly Positive
BuildingSimulation
Bridge Constructor Portal
2017
Est. copies
≈ 258k–419k
SteamSpy 200k–500k
Est. revenue
$709k–$1.9M after Steam's cut $1.3M–$2.9M before the cut
$9.99
7k reviews
Very Positive
Zup! Z
2020
Est. copies
≈ 107k–175k
SteamSpy 200k–500k
Est. revenue
$59k–$158k after Steam's cut $107k–$243k before the cut
$1.99
4k reviews
Overwhelmingly Positive
PuzzleIndie
Poly Bridge
2016
Est. copies
≈ 786k–1.3M
3.2x vs typical
SteamSpy 500k–1M
Est. revenue
$2.2M–$5.8M after Steam's cut $3.9M–$8.9M before the cut
$9.99
19k reviews
Very Positive
BuildingSimulation
Type:Rider
2013
Est. copies
≈ 107k–174k
SteamSpy 50k–100k
Est. revenue
$147k–$396k after Steam's cut $268k–$609k before the cut
$4.99
2k reviews
Mostly Positive
CasualPlatformer

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