How much revenue did Congo make?

$11k–$30k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Congo sell?

Q: How many copies did Congo sell?

8k to 13k copies, based on its 194 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 8k–13k; $11k–$30k after Steam's cut $20k–$46k before the cut; from 194 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 Congo out and predicted the genre from its 8 similar games. Every figure here, including Congo's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 77k–880k

best case 1.1M (Alien Swarm: Reactive Drop)

Games like Congo

The middle of these games

≈ 77k–880k copies

≈ $249k–$638k after Steam's cut

from ~3k reviews

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

4 of your 8 similar games are hits.

Best case: Alien Swarm: Reactive Drop at ≈ 818k–1.3M copies.

What it took to get here

About half the games that made it here had over 15 reviews in their first month; the spread ran 3 to 224.

Under about 100 in month one, almost nothing recovers.

The genre you'd be entering

Your set: Your set clusters on Shooter (5 of 8) and Aliens (4 of 8).
The winners: Winners here lead with Twin Stick Shooter + Top-Down Shooter.
The era: The games you compared span 2007 to 2024, 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 79 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
Alien Swarm: Reactive Drop 2017	Est. copies ≈ 818k–1.3M 7.6x vs typical SteamSpy 200k–500k	Est. revenue Free	Free	24k reviews Very Positive	Twin Stick ShooterPvE
Alien Swarm 2010	Est. copies ≈ 1.4M–2.2M 6.9x vs typical SteamSpy 2M–5M	Est. revenue Free	Free	22k reviews Very Positive	Free to PlayCo-op
Star Control®: Origins 2018	Est. copies ≈ 82k–133k SteamSpy 200k–500k	Est. revenue $449k–$1.2M after Steam's cut $816k–$1.9M before the cut	$19.99	3k reviews Mostly Positive	FunnyStory Rich
Alien Shooter 2: Reloaded 2009	Est. copies ≈ 227k–369k SteamSpy 200k–500k	Est. revenue $312k–$838k after Steam's cut $566k–$1.3M before the cut	$4.99	4k reviews Very Positive	AliensLooter Shooter
Broken Lines 2020	Est. copies ≈ 17k–28k SteamSpy 50k–100k	Est. revenue $119k–$321k after Steam's cut $217k–$493k before the cut	$24.99	700 reviews Mostly Positive	WarSingleplayer
Shadowgrounds Survivor 2007	Est. copies ≈ 51k–83k SteamSpy 200k–500k	Est. revenue $140k–$378k after Steam's cut $255k–$581k before the cut	$9.99	809 reviews Mixed	ActionSci-fi
No Space For All 2024	Est. copies ≈ 843–1k too small to compare SteamSpy under 20k	Est. revenue $1k–$3k after Steam's cut $2k–$5k before the cut	$4.99	34 reviews Positive	Action RoguelikeShoot 'Em Up
Bug Heroes: Tower Defense 2024	Est. copies ≈ 1k–2k too small to compare SteamSpy under 20k	Est. revenue $4k–$10k after Steam's cut $7k–$15k before the cut	$9.99	53 reviews Very Positive	ActionStrategy