How much revenue did iso-Sphere make?

$2k–$5k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did iso-Sphere sell?

Q: How many copies did iso-Sphere sell?

1k to 2k copies, based on its 27 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 1k–2k; $2k–$5k after Steam's cut $3k–$7k before Steam's cut; from 27 reviews (Mixed)

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 iso-Sphere and predicted how it would do from its 8 similar games. Every figure here, including iso-Sphere's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 672k–1.0M

best case 1.3M (Unpacking)

Games like iso-Sphere

A typical game among these

≈ 672k–1.0M copies

≈ $5.3M–$7.9M after Steam's cut

from ~21k reviews

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

4 of the 8 similar games are hits.

No genre covers most of these similar games. The closest is Puzzle (3 of 8), so its genre is hard to place.

Of the 416 indie games that passed 1,000 reviews in 2022, 11.8% were novel genre mixes and 88.2% stuck to an established genre. Published indie market research.

Best case: Unpacking at ≈ 1.0M–1.7M copies, ≈ $5.6M–$15.1M after Steam's cut.

What their first month looked like

About half the games that made it here had over 36 reviews in their first month; the range was 9 to 4k.

Games with under about 100 reviews in month one almost never recover.

The genre you'd be entering

These games: The similar games share Puzzle (3 of 8) and Turn-Based Strategy (3 of 8).
The winners: Winners here lead with Puzzle + Story Rich, priced around $20.
When they shipped: None of the similar games shipped in the last two years; the newest is from 2023. 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 that falls with release age, from about 31 for the most recent game here to about 38 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
TUNIC 2022	Est. copies ≈ 464k–753k SteamSpy 1M–2M	Est. revenue $3.8M–$10.3M after Steam's cut $7.0M–$15.8M before Steam's cut	$29.99	19k reviews Very Positive	ExplorationPuzzle
Thronebreaker: The Witcher Tales 2018	Est. copies ≈ 528k–859k SteamSpy 500k–1M	Est. revenue $2.9M–$7.8M after Steam's cut $5.3M–$12.0M before Steam's cut	$19.99	17k reviews Very Positive	RPGAdventure
Unpacking 2021	Est. copies ≈ 1.0M–1.7M 2.0x vs typical SteamSpy 500k–1M	Est. revenue $5.6M–$15.1M after Steam's cut $10.2M–$23.2M before Steam's cut	$19.99	41k reviews Very Positive	RelaxingCute
Into the Breach 2018	Est. copies ≈ 682k–1.1M SteamSpy 1M–2M	Est. revenue $2.8M–$7.6M after Steam's cut $5.1M–$11.6M before Steam's cut	$14.99	22k reviews Very Positive	StrategyTurn-Based Strategy
GLADIABOTS - AI Combat Arena 2019	Est. copies ≈ 26k–43k too small to compare SteamSpy 200k–500k	Est. revenue $109k–$293k after Steam's cut $198k–$450k before Steam's cut	$14.99	917 reviews Very Positive	StrategyArtificial Intelligence
Oakenfold 2022	Est. copies ≈ 1k–2k too small to compare SteamSpy under 20k	Est. revenue $7k–$18k after Steam's cut $12k–$28k before Steam's cut	$19.99	49 reviews Positive	StrategyTurn-Based Tactics
Gerritory 2020	Est. copies ≈ 347–564 too small to compare SteamSpy 50k–100k	Est. revenue $762–$2k after Steam's cut $1k–$3k before Steam's cut	$7.99	14 reviews Positive	MultiplayerLocal Multiplayer
Keep the Keep 2023	Est. copies ≈ 521–846 too small to compare SteamSpy under 20k	Est. revenue $715–$2k after Steam's cut $1k–$3k before Steam's cut	$4.99	21 reviews Positive	PvPTurn-Based Tactics