How much revenue did Mars Horizon make?

$422k–$1.1M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Mars Horizon sell?

Q: How many copies did Mars Horizon sell?

77k to 125k copies, based on its 3k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 77k–125k; $422k–$1.1M after Steam's cut $768k–$1.7M before Steam's cut; from 3k reviews (Very 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 Mars Horizon and predicted how it would do from its 8 similar games. Every figure here, including Mars Horizon's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 643–17k

best case 10.7M (Stellaris)

Games like Mars Horizon

A typical game among these

≈ 643–17k copies

≈ $701–$101k after Steam's cut

from ~55 reviews

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

2 of the 8 similar games are hits.

Best case: Stellaris at ≈ 8.2M–13.3M copies, ≈ $112.6M–$302.6M after Steam's cut. 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 12 reviews in their first month; the range was 3 to 686.

Games with under about 100 reviews in month one almost never recover.

The genre you'd be entering

These games: The similar games share Simulation (6 of 8) and Sandbox (5 of 8).
The winners: Winners here lead with Space + Sandbox, priced around $45. The breakout hits carry Space + Grand Strategy + Sci-fi; a typical game here doesn't.
When they shipped: The similar games span 2015 to 2023, and none of them 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

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Stellaris 2016	Est. copies ≈ 8.2M–13.3M 3611x vs typical SteamSpy 2M–5M	Est. revenue $112.6M–$302.6M after Steam's cut $204.7M–$465.6M before Steam's cut	$49.99	197k reviews Very Positive	SpaceGrand Strategy
Kerbal Space Program 2015	Est. copies ≈ 7.2M–11.7M 2700x vs typical SteamSpy 2M–5M	Est. revenue $79.0M–$212.3M after Steam's cut $143.6M–$326.6M before Steam's cut	$39.99	147k reviews Overwhelmingly Positive	SpaceSimulation
Satellite Command 2016	Est. copies ≈ 3k–5k SteamSpy 20k–50k	Est. revenue $9k–$25k after Steam's cut $17k–$38k before Steam's cut	$9.99	81 reviews Mixed	SimulationIndie
Rover Mechanic Simulator 2020	Est. copies ≈ 17k–27k 12x vs typical SteamSpy 50k–100k	Est. revenue $55k–$148k after Steam's cut $100k–$227k before Steam's cut	$11.99	671 reviews Mostly Positive	SimulationIndie
Rocket Inc 2022	Est. copies ≈ 99–161 SteamSpy 20k–50k	Est. revenue $81–$219 after Steam's cut $148–$337 before Steam's cut	$2.99	4 reviews 4 user reviews	Exploration2D Platformer
Rover Mechanic Challenge - ERC Competition 2020	Est. copies ≈ 422–685 SteamSpy under 20k	Est. revenue Free	Free	17 reviews Mostly Positive	Simulation Management
Delivery in Space 2022	Est. copies ≈ 694–1k SteamSpy 20k–50k	Est. revenue $380–$1k after Steam's cut $691–$2k before Steam's cut	$1.99	28 reviews Positive	Card GameStrategy
EarthX 2023	Est. copies ≈ 23k–37k 17x vs typical SteamSpy 20k–50k	Est. revenue $63k–$169k after Steam's cut $114k–$260k before Steam's cut	$9.99	921 reviews Very Positive	SimulationIndie