Sign in
wishvane

How many copies did Size Matters sell?

Estimated copies sold
≈ 13k–21k
$35k–$94k after Steam's cut $63k–$144k before the cut
from 511 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 Size Matters out and predicted the genre from its 8 similar games. Every figure here, including Size Matters's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 435k–1.0M
best case 9.4M (Kerbal Space Program)
Games like Size Matters

The middle of these games

≈ 435k–1.0M copies

≈ $2.0M–$11.6M after Steam's cut

from ~18k 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.

Best case: Kerbal Space Program at ≈ 7.1M–11.6M copies, ≈ $78.6M–$211.3M 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 11k reviews in their first month; the spread ran 1k to 23k.
The genre you'd be entering
Your set
Your set clusters on Simulation (7 of 8) and Sandbox (5 of 8).
The winners
Winners here lead with Space + Simulation, priced around $40. The breakout hits carry Moddable + Physics + Space Sim; a typical game here doesn't.
The era
The games you compared span 2015 to 2024, 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 61 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

Similar games

Cell to Singularity - Evolution Never Ends
2021
Est. copies
≈ 693k–1.1M
1.6x vs typical
SteamSpy 1M–2M
Est. revenue
Free
Free
28k reviews
Very Positive
ClickerFree to Play
Kerbal Space Program
2015
Est. copies
≈ 7.1M–11.6M
8.2x 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
Eco
2018
Est. copies
≈ 427k–694k
SteamSpy 500k–1M
Est. revenue
$3.5M–$9.5M after Steam's cut $6.4M–$14.6M before the cut
$29.99
14k reviews
Very Positive
Early AccessSimulation
Mars Horizon
2020
Est. copies
≈ 77k–125k
SteamSpy 200k–500k
Est. revenue
$422k–$1.1M after Steam's cut $766k–$1.7M before the cut
$19.99
3k reviews
Very Positive
ManagementSpace
Universe Sandbox
2015
Est. copies
≈ 1.6M–2.5M
1.8x vs typical
SteamSpy 1M–2M
Est. revenue
$12.9M–$34.7M after Steam's cut $23.5M–$53.4M before the cut
$29.99
32k reviews
Overwhelmingly Positive
SandboxSpace
Automation - The Car Company Tycoon Game
2015
Est. copies
≈ 873k–1.4M
SteamSpy 500k–1M
Est. revenue
$7.2M–$19.4M after Steam's cut $13.1M–$29.8M before the cut
$29.99
18k reviews
Very Positive
while True: learn()
2019
Est. copies
≈ 235k–382k
SteamSpy 500k–1M
Est. revenue
$841k–$2.3M after Steam's cut $1.5M–$3.5M before the cut
$12.99
8k reviews
Very Positive
ProgrammingSimulation
Rocksmith® 2014 Edition REMASTERED LEARN & PLAY
2024
Est. copies
≈ 628k–1.0M
SteamSpy 500k–1M
Est. revenue
$1.7M–$4.6M after Steam's cut $3.1M–$7.1M before the cut
$9.99
25k reviews
Very Positive
MusicEducation

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