How many copies did Slipstream: Rogue Space sell?

4k to 6k copies, based on its 145 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Slipstream: Rogue Space make?

Slipstream: Rogue Space is free to play, so there is no copy-sales revenue to estimate.

How big is Slipstream: Rogue Space?

Estimated owners: ≈ 4k–6k; from 145 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 Slipstream: Rogue Space out and predicted the genre from its 8 similar games. Every figure here, including Slipstream: Rogue Space's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 28k–7.6M

best case 37.8M (HELLDIVERS™ 2)

Games like Slipstream: Rogue Space

The middle of these games

≈ 28k–7.6M copies

≈ $13.5M–$134.8M after Steam's cut

from ~55k reviews

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

5 of your 8 similar games are hits.

Best case: HELLDIVERS™ 2 at ≈ 28.8M–46.8M copies, ≈ $316.7M–$851.6M after Steam's cut.

What it took to get here

About half the games that made it here had over 32k reviews in their first month; the spread ran 302 to 251k.

The genre you'd be entering

Your set: Your set clusters on Sci-fi (8 of 8) and Co-op (5 of 8).
The winners: Winners here lead with Third-Person Shooter + Shooter, priced around $40.
The era: The games you compared span 2015 to 2025, and 2 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

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Split Fiction 2025	Est. copies ≈ 3.1M–5.1M 2.3x vs typical SteamSpy 2M–5M	Est. revenue $43.1M–$115.8M after Steam's cut $78.3M–$178.1M before the cut	$49.99	126k reviews Overwhelmingly Positive	Co-opSplit Screen
Star Trek™: Bridge Crew 2017	Est. copies ≈ 112k–182k SteamSpy 200k–500k	Est. revenue Free	Free	3k reviews Mostly Positive	VRSimulation
BattleGroupVR 2023	Est. copies ≈ 24k–38k SteamSpy 20k–50k	Est. revenue $162k–$435k after Steam's cut $294k–$670k before the cut	$24.99	950 reviews Very Positive	Space SimSpace
HELLDIVERS™ 2 2024	Est. copies ≈ 28.8M–46.8M 21x vs typical SteamSpy 20M–50M	Est. revenue $316.7M–$851.6M after Steam's cut $575.9M–$1310.1M before the cut	$39.99	1.2M reviews Mostly Positive	Online Co-OpPvE
Elite Dangerous 2015	Est. copies ≈ 5.3M–8.5M 1.9x vs typical SteamSpy 2M–5M	Est. revenue $28.9M–$77.6M after Steam's cut $52.5M–$119.4M before the cut	$19.99	108k reviews Mostly Positive	Space SimSpace
Halo: The Master Chief Collection 2019	Est. copies ≈ 7.6M–12.3M 4.7x vs typical SteamSpy 5M–10M	Est. revenue $83.1M–$223.5M after Steam's cut $151.2M–$343.9M before the cut	$39.99	262k reviews Very Positive	Great SoundtrackFPS
Star Trek™: Starfleet Academy 2015	Est. copies ≈ 6k–10k SteamSpy 20k–50k	Est. revenue $35k–$95k after Steam's cut $64k–$146k before the cut	$19.99	132 reviews Very Positive	SimulationSpace Sim
Dual Universe 2022	Est. copies ≈ 14k–23k SteamSpy 100k–200k	Est. revenue Free	Free	565 reviews Mixed	Massively MultiplayerMMORPG