How many copies did Tukoni: Prologue sell?

100k to 162k copies, based on its 4k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Tukoni: Prologue make?

Tukoni: Prologue is free to play, so there is no copy-sales revenue to estimate.

How big is Tukoni: Prologue?

Estimated players who have it: ≈ 100k–162k; from 4k reviews (Overwhelmingly 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 Tukoni: Prologue and predicted how it would do from its 8 similar games. Every figure here, including Tukoni: Prologue's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 4.6M–8.2M

best case 38.8M (Portal 2)

Games like Tukoni: Prologue

A typical game among these

≈ 4.6M–8.2M copies

≈ $30.6M–$59.6M after Steam's cut

from ~95k 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: Portal 2 at ≈ 29.5M–48.0M copies, ≈ $81.1M–$218.1M after Steam's cut.

The genre you'd be entering

These games: The similar games share Platformer (6 of 8) and Puzzle (4 of 8).
The winners: Winners here lead with Platformer + Puzzle, priced around $10.
When they shipped: The similar games span 2007 to 2020, 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
Portal 2 2011	Est. copies ≈ 29.5M–48.0M 4.9x vs typical SteamSpy 5M–10M	Est. revenue $81.1M–$218.1M after Steam's cut $147.5M–$335.6M before Steam's cut	$9.99	467k reviews Overwhelmingly Positive	Platformer Puzzle
Little Nightmares 2017	Est. copies ≈ 4.0M–6.5M SteamSpy 5M–10M	Est. revenue $22.1M–$59.3M after Steam's cut $40.1M–$91.3M before Steam's cut	$19.99	117k reviews Very Positive	HorrorAtmospheric
LIMBO 2011	Est. copies ≈ 3.9M–6.4M SteamSpy 2M–5M	Est. revenue $13.5M–$36.3M after Steam's cut $24.5M–$55.8M before Steam's cut	$12.49	62k reviews Very Positive	Puzzle-PlatformerIndie
Ori and the Blind Forest 2015	Est. copies ≈ 2.9M–4.8M SteamSpy 2M–5M	Est. revenue Free	Free	60k reviews Very Positive	Great SoundtrackAtmospheric
Ori and the Blind Forest: Definitive Edition 2016	Est. copies ≈ 3.0M–4.8M SteamSpy 2M–5M	Est. revenue $16.4M–$44.1M after Steam's cut $29.8M–$67.8M before Steam's cut	$19.99	72k reviews Overwhelmingly Positive	AtmosphericGreat Soundtrack
BattleBlock Theater® 2014	Est. copies ≈ 4.1M–6.6M SteamSpy 2M–5M	Est. revenue $16.8M–$45.3M after Steam's cut $30.6M–$69.6M before Steam's cut	$14.99	73k reviews Overwhelmingly Positive	Co-op Platformer
Portal 2007	Est. copies ≈ 12.6M–20.5M 2.1x vs typical SteamSpy 10M–20M	Est. revenue $34.6M–$93.1M after Steam's cut $63.0M–$143.3M before Steam's cut	$9.99	199k reviews Overwhelmingly Positive	PuzzlePuzzle-Platformer
Ori and the Will of the Wisps 2020	Est. copies ≈ 3.6M–5.9M 1.5x vs typical SteamSpy 2M–5M	Est. revenue $30.0M–$80.6M after Steam's cut $54.5M–$124.0M before Steam's cut	$29.99	147k reviews Overwhelmingly Positive	BeautifulMetroidvania