How many copies did .Forty-Five sell?

25k to 41k copies, based on its 1k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did .Forty-Five make?

.Forty-Five is free to play, so there is no copy-sales revenue to estimate.

How big is .Forty-Five?

Estimated owners: ≈ 25k–41k; from 1k 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 .Forty-Five out and predicted the genre from its 8 similar games. Every figure here, including .Forty-Five's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 439k–506k

best case 8.2M (Slay the Spire)

Games like .Forty-Five

The middle of these games

≈ 439k–506k copies

≈ $3.4M–$4.8M after Steam's cut

from ~11k reviews

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

6 of your 8 similar games are hits.

Best case: Slay the Spire at ≈ 6.3M–10.2M copies, ≈ $43.1M–$116.0M 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 4k reviews in their first month; the spread ran 1 to 21k.

The genre you'd be entering

Your set: Your set clusters on Card Game (7 of 8) and Roguelike Deckbuilder (7 of 8).
The winners: Winners here lead with Roguelike Deckbuilder + Card Game, priced around $20. The breakout hits carry Singleplayer + Rogue-like + Pixel Graphics; a typical game here doesn't.
The era: 4 of your 8 similar games shipped in the last two years, so this niche is actively shipping.

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 61 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
Double Barrel Desperado 2024	Est. copies ≈ 74–121 too small to compare SteamSpy under 20k	Est. revenue $61–$164 after Steam's cut $111–$253 before the cut	$2.99	3 reviews 3 user reviews	Roguelike DeckbuilderCasual
Chrono Ark 2024	Est. copies ≈ 340k–553k SteamSpy 200k–500k	Est. revenue $2.3M–$6.3M after Steam's cut $4.2M–$9.7M before the cut	$24.99	14k reviews Very Positive	Roguelike DeckbuilderAnime
Dicey Dungeons 2019	Est. copies ≈ 340k–553k SteamSpy 200k–500k	Est. revenue $1.4M–$3.8M after Steam's cut $2.5M–$5.8M before the cut	$14.99	12k reviews Very Positive	Roguelike DeckbuilderCard Battler
Hand of Fate 2015	Est. copies ≈ 521k–847k SteamSpy 500k–1M	Est. revenue $2.9M–$7.7M after Steam's cut $5.2M–$11.9M before the cut	$19.99	11k reviews Very Positive	Roguelike Deckbuilder Rogue-like
Slay the Spire 2019	Est. copies ≈ 6.3M–10.2M 19x vs typical SteamSpy 5M–10M	Est. revenue $43.1M–$116.0M after Steam's cut $78.4M–$178.5M before the cut	$24.99	218k reviews Overwhelmingly Positive	Roguelike DeckbuilderCard Game
Balatro 2024	Est. copies ≈ 4.9M–8.0M 17x vs typical SteamSpy 2M–5M	Est. revenue $20.2M–$54.4M after Steam's cut $36.8M–$83.7M before the cut	$14.99	198k reviews Overwhelmingly Positive	Card GameRoguelike Deckbuilder
月圆之夜 (Night of Full Moon) 2019	Est. copies ≈ 316k–514k SteamSpy 500k–1M	Est. revenue Free	Free	11k reviews Very Positive	Card GameFree to Play
Risk & Riches 2025	Est. copies ≈ 124–202 too small to compare SteamSpy under 20k	Est. revenue $340–$918 after Steam's cut $619–$1k before the cut	$9.99	5 reviews 5 user reviews	Roguelike Deckbuilder Rogue-lite