How much revenue did Project Martians make?

$218–$585 after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Project Martians sell?

Q: How many copies did Project Martians sell?

99 to 161 copies, based on its 4 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 99–161; $218–$585 after Steam's cut $396–$900 before Steam's cut; from 4 reviews (4 user reviews); Only 4 reviews so far, so that range swings on one or two people. Read it as a hint, not a measurement.

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 Project Martians and predicted how it would do from its 8 similar games. Every figure here, including Project Martians's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 27k–133k

best case 1.2M (Surviving Mars)

Games like Project Martians

A typical game among these

≈ 27k–133k copies

≈ $119k–$1.1M after Steam's cut

from ~2k reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

5 of the 8 similar games are hits.

Best case: Surviving Mars at ≈ 889k–1.4M copies. It is a breakout hit, far above a typical game.

What their first month looked like

About half the games that made it here had over 1k reviews in their first month; the range was 264 to 3k.

The genre you'd be entering

These games: The similar games share Base-Building (8 of 8) and Colony Sim (6 of 8).
The winners: Winners here lead with Colony Sim + City Builder. The breakout hits carry Space + Mars + City Builder; a typical game here doesn't.
When they shipped: The similar games span 2018 to 2025, and 3 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 38 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
Plan B: Terraform 2025	Est. copies ≈ 91k–148k 1.6x vs typical SteamSpy 100k–200k	Est. revenue $400k–$1.1M after Steam's cut $726k–$1.7M before Steam's cut	$15.99	4k reviews Very Positive	Early AccessAutomation
Mind Over Magic 2025	Est. copies ≈ 111k–181k 2.0x vs typical SteamSpy 200k–500k	Est. revenue $765k–$2.1M after Steam's cut $1.4M–$3.2M before Steam's cut	$24.99	4k reviews Very Positive	Survival Colony Sim
Reshaping Mars 2023	Est. copies ≈ 21k–34k SteamSpy 100k–200k	Est. revenue $57k–$153k after Steam's cut $103k–$235k before Steam's cut	$9.99	833 reviews Very Positive	SimulationStrategy
Sheltered 2 2021	Est. copies ≈ 55k–90k SteamSpy 200k–500k	Est. revenue $303k–$814k after Steam's cut $551k–$1.3M before Steam's cut	$19.99	2k reviews Mixed	SurvivalResource Management
Surviving Mars 2018	Est. copies ≈ 889k–1.4M 13x vs typical SteamSpy 2M–5M	Est. revenue Free	Free	29k reviews Mostly Positive	Colony Sim City Builder
Per Aspera 2020	Est. copies ≈ 143k–233k 2.6x vs typical SteamSpy 200k–500k	Est. revenue $1.2M–$3.2M after Steam's cut $2.2M–$4.9M before Steam's cut	$29.99	6k reviews Mostly Positive	Online Co-OpReal-Time
Stellar Settlers: Space Base Builder 2025	Est. copies ≈ 21k–34k SteamSpy 20k–50k	Est. revenue $68k–$183k after Steam's cut $124k–$282k before Steam's cut	$11.99	834 reviews Mixed	Colony Sim City Builder
Farlanders 2023	Est. copies ≈ 15k–24k SteamSpy 50k–100k	Est. revenue $61k–$164k after Steam's cut $111k–$253k before Steam's cut	$14.99	598 reviews Very Positive	City BuilderTurn-Based Strategy