How much revenue did Erra: Exordium make?

$22k–$60k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Erra: Exordium sell?

Q: How many copies did Erra: Exordium sell?

4k to 7k copies, based on its 164 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 4k–7k; $22k–$60k after Steam's cut $41k–$92k before Steam's cut; from 164 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 Erra: Exordium and predicted how it would do from its 8 similar games. Every figure here, including Erra: Exordium's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 6k–21k

best case 61k (The Darkest Tales — Into the Nightmare)

Games like Erra: Exordium

A typical game among these

≈ 6k–21k copies

≈ $30k–$58k after Steam's cut

from ~377 reviews

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

1 of the 8 similar games is a hit.

Best case: The Darkest Tales — Into the Nightmare at ≈ 46k–75k copies.

What their first month looked like

About half the games that made it here had over 141 reviews in their first month; the range was 18 to 464.

The genre you'd be entering

These games: The similar games share 2D Platformer (8 of 8) and Action-Adventure (6 of 8).
The winners: Winners here lead with Platformer + Action-Adventure.
When they shipped: Only 3 of the 8 similar games shipped in the last two years. That says more about which games were found than about the market.

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 of about 31, 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
Homeland 2024	Est. copies ≈ 1k–2k SteamSpy under 20k	Est. revenue $2k–$5k after Steam's cut $3k–$8k before Steam's cut	$5.99	46 reviews Mixed	ActionAdventure
The Darkest Tales — Into the Nightmare 2021	Est. copies ≈ 46k–75k 5.0x vs typical SteamSpy 200k–500k	Est. revenue Free	Free	2k reviews Very Positive	Free to PlayAdventure
Sentimental Death Loop 2023	Est. copies ≈ 5k–8k SteamSpy under 20k	Est. revenue $26k–$69k after Steam's cut $47k–$107k before Steam's cut	$19.99	189 reviews Mixed	AdventureSurvival Horror
qomp 2021	Est. copies ≈ 13k–22k SteamSpy under 20k	Est. revenue $26k–$69k after Steam's cut $47k–$106k before Steam's cut	$6.99	538 reviews Overwhelmingly Positive	ShortPrecision Platformer
The Darkest Tales 2022	Est. copies ≈ 23k–38k 2.5x vs typical SteamSpy under 20k	Est. revenue $127k–$342k after Steam's cut $232k–$527k before Steam's cut	$19.99	934 reviews Mostly Positive	Dark FantasyAdventure
Elypse 2023	Est. copies ≈ 10k–16k SteamSpy under 20k	Est. revenue $28k–$74k after Steam's cut $50k–$114k before Steam's cut	$9.99	405 reviews Mostly Positive	2D PlatformerPlatformer
Somber Echoes 2025	Est. copies ≈ 9k–14k SteamSpy under 20k	Est. revenue $36k–$96k after Steam's cut $65k–$148k before Steam's cut	$14.99	349 reviews Very Positive	ExplorationStory Rich
Blade of the Netherworld 2024	Est. copies ≈ 4k–6k SteamSpy under 20k	Est. revenue $7k–$20k after Steam's cut $13k–$30k before Steam's cut	$6.99	154 reviews Mostly Positive	ActionAction Roguelike