How much revenue did Zero-Sum Heart make?

$8k–$23k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Zero-Sum Heart sell?

Q: How many copies did Zero-Sum Heart sell?

6k to 10k copies, based on its 247 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 6k–10k; $8k–$23k after Steam's cut $15k–$35k before the cut; from 247 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 Zero-Sum Heart out and predicted the genre from its 8 similar games. Every figure here, including Zero-Sum Heart's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 1.7M–2.2M

best case 8.5M (Detroit: Become Human)

Games like Zero-Sum Heart

The middle of these games

≈ 1.7M–2.2M copies

≈ $11.2M–$16.3M after Steam's cut

from ~40k reviews

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

All 8 of your similar games are hits.

Best case: Detroit: Become Human at ≈ 6.5M–10.5M copies, ≈ $71.2M–$191.3M after Steam's cut. A breakout hit, far above a typical game.

What it took to get here

About half the games that made it here had over 11k reviews in their first month; the spread ran 8k to 12k.

The genre you'd be entering

Your set: Your set clusters on Choices Matter (7 of 8) and Story Rich (7 of 8).
The winners: Winners here lead with Story Rich + Choices Matter, priced around $40. The breakout hits carry Time Travel + Cinematic + Emotional; a typical game here doesn't.
The era: The games you compared span 2013 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
Life is Strange 2 2018	Est. copies ≈ 1.2M–2.0M SteamSpy 10M–20M	Est. revenue Free	Free	41k reviews Very Positive	Choices MatterStory Rich
Mass Effect™ Legendary Edition 2021	Est. copies ≈ 1.7M–2.7M 1.7x vs typical SteamSpy 1M–2M	Est. revenue $27.4M–$73.7M after Steam's cut $49.8M–$113.3M before the cut	$59.99	67k reviews Very Positive	Story RichRPG
Volcano Princess 2023	Est. copies ≈ 1.2M–2.0M SteamSpy 1M–2M	Est. revenue $3.7M–$9.9M after Steam's cut $6.7M–$15.2M before the cut	$10.99	49k reviews Overwhelmingly Positive	Life SimMultiple Endings
Life is Strange - Episode 1 2015	Est. copies ≈ 8.6M–13.9M 4.4x vs typical SteamSpy 5M–10M	Est. revenue Free	Free	176k reviews Overwhelmingly Positive	Story RichChoices Matter
The Walking Dead: Season Two 2013	Est. copies ≈ 2.1M–3.5M SteamSpy 1M–2M	Est. revenue $8.8M–$23.8M after Steam's cut $16.1M–$36.6M before the cut	$14.99	34k reviews Overwhelmingly Positive	ZombiesAdventure
Detroit: Become Human 2020	Est. copies ≈ 6.5M–10.5M 6.6x vs typical SteamSpy 2M–5M	Est. revenue $71.2M–$191.3M after Steam's cut $129.4M–$294.4M before the cut	$39.99	261k reviews Overwhelmingly Positive	Choices MatterStory Rich
Life is Strange: Before the Storm 2017	Est. copies ≈ 1.3M–2.1M SteamSpy 2M–5M	Est. revenue $6.1M–$16.4M after Steam's cut $11.1M–$25.2M before the cut	$16.99	38k reviews Very Positive	Story RichChoices Matter
VA-11 Hall-A: Cyberpunk Bartender Action 2016	Est. copies ≈ 1.6M–2.6M SteamSpy 500k–1M	Est. revenue $6.6M–$17.8M after Steam's cut $12.1M–$27.4M before the cut	$14.99	39k reviews Overwhelmingly Positive	CyberpunkVisual Novel