How much revenue did Mass Effect (2007) make?

$8.6M–$23.2M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Mass Effect (2007) sell?

Q: How many copies did Mass Effect (2007) sell?

1.0M to 1.7M copies, based on its 17k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 1.0M–1.7M; $8.6M–$23.2M after Steam's cut $15.7M–$35.7M before Steam's cut; from 17k 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 Mass Effect (2007) and predicted how it would do from its 8 similar games. Every figure here, including Mass Effect (2007)'s, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 2.3M–2.8M

best case 10.7M (Stellaris)

Games like Mass Effect (2007)

A typical game among these

≈ 2.3M–2.8M copies

≈ $30.0M–$46.8M after Steam's cut

from ~61k reviews

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

All 8 of the similar games are hits.

Best case: Stellaris at ≈ 8.2M–13.3M copies, ≈ $112.6M–$302.6M after Steam's cut. It is a breakout hit, far above a typical game.

What their first month looked like

About half the games that made it here had over 11k reviews in their first month; the range was 5k to 93k.

The genre you'd be entering

These games: The similar games share Sci-fi (6 of 8) and Space (5 of 8).
The winners: Winners here lead with Space + Sci-fi, priced around $50. The breakout hits carry Exploration + Space + Grand Strategy; a typical game here doesn't.
When they shipped: The similar games span 2009 to 2023, and none of them 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
Prey 2017	Est. copies ≈ 1.9M–3.1M SteamSpy 1M–2M	Est. revenue $15.5M–$41.8M after Steam's cut $28.2M–$64.2M before Steam's cut	$29.99	55k reviews Very Positive	Sci-fiImmersive Sim
Marvel's Guardians of the Galaxy 2021	Est. copies ≈ 1.1M–1.8M SteamSpy 500k–1M	Est. revenue $18.6M–$50.0M after Steam's cut $33.8M–$77.0M before Steam's cut	$59.99	45k reviews Very Positive	SingleplayerStory Rich
Starfield 2023	Est. copies ≈ 4.4M–7.1M 2.9x vs typical SteamSpy 2M–5M	Est. revenue $59.8M–$160.9M after Steam's cut $108.8M–$247.5M before Steam's cut	$49.99	175k reviews Mixed	SpaceSingleplayer
STAR WARS Jedi: Survivor™ 2023	Est. copies ≈ 2.1M–3.5M SteamSpy 1M–2M	Est. revenue $41.3M–$111.2M after Steam's cut $75.2M–$171.0M before Steam's cut	$69.99	87k reviews Mostly Positive	ActionAdventure
Outer Wilds 2020	Est. copies ≈ 2.7M–4.4M 1.8x vs typical SteamSpy 1M–2M	Est. revenue $18.5M–$49.7M after Steam's cut $33.6M–$76.4M before Steam's cut	$24.99	108k reviews Overwhelmingly Positive	ExplorationSpace
Mass Effect™ Legendary Edition 2021	Est. copies ≈ 1.7M–2.7M SteamSpy 1M–2M	Est. revenue $27.7M–$74.3M after Steam's cut $50.3M–$114.4M before Steam's cut	$59.99	68k reviews Very Positive	Story RichRPG
Stellaris 2016	Est. copies ≈ 8.2M–13.3M 3.2x vs typical SteamSpy 2M–5M	Est. revenue $112.6M–$302.6M after Steam's cut $204.7M–$465.6M before Steam's cut	$49.99	197k reviews Very Positive	SpaceGrand Strategy
STAR WARS™ Knights of the Old Republic™ 2009	Est. copies ≈ 2.2M–3.5M SteamSpy 2M–5M	Est. revenue $5.9M–$15.9M after Steam's cut $10.7M–$24.5M before Steam's cut	$9.99	34k reviews Very Positive	RPGSci-fi