How many copies did Alien Swarm: Reactive Drop sell?

814k to 1.3M copies, based on its 24k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Alien Swarm: Reactive Drop make?

Alien Swarm: Reactive Drop is free to play, so there is no copy-sales revenue to estimate.

How big is Alien Swarm: Reactive Drop?

Estimated owners: ≈ 814k–1.3M; from 24k 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 Alien Swarm: Reactive Drop out and predicted the genre from its 8 similar games. Every figure here, including Alien Swarm: Reactive Drop's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 59k–111k

best case 794k (The Ascent)

The Rogue-lite genre

All 8 of your similar games are hits. A niche genre: plan for a small audience.

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

A typical game

≈ 59k–111k copies

≈ $214k–$505k after Steam's cut

from ~2k reviews

Best case

≈ 605k–983k copies

The Ascent · ≈ $5.0M–$13.4M after Steam's cut

A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on Rogue-lite (5 of 8) and Shooter (5 of 8).
The winners: Winners here lead with Top-Down Shooter + Cyberpunk, priced around $30. The breakout hits carry Cyberpunk + RPG + Co-op; a typical game here doesn't.
The era: The games you compared span 2006 to 2024, a genre with a long track record.

Copies and revenue are rough lifetime estimates from the review count.

Similar games

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Skillshot City 2017	Est. copies ≈ 113k–184k 1.8x vs typical SteamSpy under 20k	Est. revenue Free	Free	3k reviews Very Positive	Battle RoyaleRogue-lite
The Ascent 2021	Est. copies ≈ 605k–983k 13x vs typical SteamSpy 1M–2M	Est. revenue $5.0M–$13.4M after Steam's cut $9.1M–$20.6M before the cut	$29.99	24k reviews Mostly Positive	Top-Down ShooterCyberpunk
Shadowgrounds 2006	Est. copies ≈ 84k–137k SteamSpy 200k–500k	Est. revenue $162k–$435k after Steam's cut $294k–$669k before the cut	$6.99	2k reviews Very Positive	Top-Down ShooterSci-fi
Hell is Others 2022	Est. copies ≈ 28k–45k SteamSpy 500k–1M	Est. revenue $115k–$309k after Steam's cut $209k–$475k before the cut	$14.99	1k reviews Mostly Positive	Rogue-likeTop-Down
SYNTHETIK 2 2021	Est. copies ≈ 85k–139k 1.8x vs typical SteamSpy 500k–1M	Est. revenue $469k–$1.3M after Steam's cut $852k–$1.9M before the cut	$19.99	3k reviews Very Positive	Early AccessRogue-lite
Touhou Endless Dream 2021	Est. copies ≈ 47k–76k SteamSpy under 20k	Est. revenue $103k–$276k after Steam's cut $186k–$424k before the cut	$7.99	2k reviews Very Positive	CasualAnime
Blazing Beaks 2019	Est. copies ≈ 75k–123k SteamSpy under 20k	Est. revenue $311k–$836k after Steam's cut $565k–$1.3M before the cut	$14.99	3k reviews Very Positive	Pixel GraphicsAction Roguelike
NIMRODS 2024	Est. copies ≈ 44k–71k SteamSpy 200k–500k	Est. revenue $120k–$322k after Steam's cut $218k–$496k before the cut	$9.99	2k reviews Very Positive	Early Access2D