How many copies did Tukoni: Prologue sell?

99k to 161k 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 owners: ≈ 99k–161k; from 4k reviews (Overwhelmingly 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 Tukoni: Prologue out and predicted the genre from its 8 similar games. Every figure here, including Tukoni: Prologue's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 4.5M–8.1M

best case 38.6M (Portal 2)

Games like Tukoni: Prologue

The middle of these games

≈ 4.5M–8.1M copies

≈ $30.6M–$59.3M after Steam's cut

from ~95k 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: Portal 2 at ≈ 29.4M–47.8M copies, ≈ $80.8M–$217.4M after Steam's cut.

The genre you'd be entering

Your set: Your set clusters on Platformer (6 of 8) and Puzzle (4 of 8).
The winners: Winners here lead with Platformer + Puzzle, priced around $10.
The era: The games you compared 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 ≈ 29.4M–47.8M 4.9x vs typical SteamSpy 5M–10M	Est. revenue $80.8M–$217.4M after Steam's cut $147.0M–$334.4M before the cut	$9.99	466k reviews Overwhelmingly Positive	Platformer Puzzle
Little Nightmares 2017	Est. copies ≈ 4.0M–6.5M SteamSpy 5M–10M	Est. revenue $22.0M–$59.2M after Steam's cut $40.1M–$91.1M before the cut	$19.99	117k reviews Very Positive	HorrorAtmospheric
LIMBO 2011	Est. copies ≈ 3.9M–6.4M SteamSpy 2M–5M	Est. revenue $13.4M–$36.1M after Steam's cut $24.4M–$55.6M before the 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 $16.3M–$43.9M after Steam's cut $29.7M–$67.6M before the cut	$19.99	71k reviews Overwhelmingly Positive	AtmosphericGreat Soundtrack
BattleBlock Theater® 2014	Est. copies ≈ 4.1M–6.6M SteamSpy 2M–5M	Est. revenue $16.8M–$45.2M after Steam's cut $30.6M–$69.6M before the cut	$14.99	73k reviews Overwhelmingly Positive	Co-op Platformer
Portal 2007	Est. copies ≈ 12.5M–20.4M 2.1x vs typical SteamSpy 10M–20M	Est. revenue $34.5M–$92.6M after Steam's cut $62.6M–$142.5M before the cut	$9.99	198k 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 $29.9M–$80.3M after Steam's cut $54.3M–$123.5M before the cut	$29.99	146k reviews Overwhelmingly Positive	BeautifulMetroidvania