How many copies did Astro Lords sell?

11k to 18k copies, based on its 230 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Astro Lords make?

Astro Lords is free to play, so there is no copy-sales revenue to estimate.

How big is Astro Lords?

Estimated owners: ≈ 11k–18k; from 230 reviews (Mixed)

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 Astro Lords out and predicted the genre from its 3 similar games. Every figure here, including Astro Lords's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 3.6M–7.9M

best case 10.8M (Stellaris)

Games like Astro Lords

The middle of these games

≈ 3.6M–7.9M copies

≈ $31.5M–$123.5M after Steam's cut

from ~134k reviews

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

All 3 of your similar games are hits.

From a small set, so take it as a sketch.

Best case: Stellaris at ≈ 8.2M–13.3M copies, ≈ $112.6M–$302.8M after Steam's cut.

The genre you'd be entering

Your set: Your set clusters on Sandbox (3 of 3) and Simulation (3 of 3).
The winners: Winners here lead with Space + Grand Strategy, priced around $50.
The era: None of the games you compared shipped in the last two years; the newest is from 2019. That says more about your picks than about the market, so add newer similar games to read the timing.

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 36 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
Space Engineers 2019	Est. copies ≈ 3.9M–6.3M 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
Universe Sandbox 2015	Est. copies ≈ 1.6M–2.5M 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
Stellaris 2016	Est. copies ≈ 8.2M–13.3M SteamSpy 2M–5M	Est. revenue $112.6M–$302.8M after Steam's cut $204.7M–$465.8M before the cut	$49.99	197k reviews Very Positive	SpaceGrand Strategy