How many copies did Star Realms sell?

89k to 144k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Star Realms make?

Star Realms is free to play, so there is no copy-sales revenue to estimate.

How big is Star Realms?

Estimated owners: ≈ 89k–144k; from 2k 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 Star Realms out and predicted the genre from its 8 similar games. Every figure here, including Star Realms's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 1.3M–5.1M

best case 8.2M (Slay the Spire)

The Card Game genre

All 8 of your similar games are hits. A big, proven genre for a game like yours.

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

A typical game

≈ 1.3M–5.1M copies

≈ $16.5M–$37.0M after Steam's cut

from ~58k reviews

Best case

≈ 6.2M–10.1M copies

Slay the Spire · ≈ $42.8M–$115.2M after Steam's cut

The genre you'd be entering

Your set: Your set clusters on Card Game (6 of 8) and Deckbuilding (5 of 8).
The winners: Winners here lead with Roguelike Deckbuilder + Card Game, priced around $25.
The era: Only 1 of your 8 similar games shipped in the last two years. That says more about your picks than about the market, so add newer similar games to read the timing.

Copies and revenue are rough lifetime estimates from the review count.

Similar games

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Slay the Spire 2019	Est. copies ≈ 6.2M–10.1M 3.8x vs typical SteamSpy 5M–10M	Est. revenue $42.8M–$115.2M after Steam's cut $77.9M–$177.2M before the cut	$24.99	216k reviews Overwhelmingly Positive	Roguelike DeckbuilderCard Game
GWENT: The Witcher Card Game 2020	Est. copies ≈ 729k–1.2M SteamSpy 1M–2M	Est. revenue Free	Free	28k reviews Very Positive	Free to PlayStrategy
Balatro 2024	Est. copies ≈ 4.7M–7.6M 3.4x vs typical SteamSpy 2M–5M	Est. revenue $19.4M–$52.1M after Steam's cut $35.2M–$80.1M before the cut	$14.99	196k reviews Overwhelmingly Positive	Card GameRoguelike Deckbuilder
Library Of Ruina 2021	Est. copies ≈ 1.1M–1.8M SteamSpy 1M–2M	Est. revenue $8.9M–$24.1M after Steam's cut $16.3M–$37.0M before the cut	$29.99	44k reviews Very Positive	Story RichCard Game
KARDS - The WW2 Card Game 2020	Est. copies ≈ 1.3M–2.1M SteamSpy 2M–5M	Est. revenue Free	Free	50k reviews Mixed	Free to PlayCard Game
觅长生 2023	Est. copies ≈ 760k–1.2M SteamSpy 1M–2M	Est. revenue $3.1M–$8.4M after Steam's cut $5.7M–$13.0M before the cut	$14.99	32k reviews Very Positive	RPGOpen World
Minion Masters 2019	Est. copies ≈ 1.9M–3.1M SteamSpy 500k–1M	Est. revenue Free	Free	65k reviews Very Positive	PvETrading Card Game
Inscryption 2021	Est. copies ≈ 3.6M–5.9M 2.6x vs typical SteamSpy 2M–5M	Est. revenue $20.0M–$53.9M after Steam's cut $36.4M–$82.9M before the cut	$19.99	147k reviews Overwhelmingly Positive	Card BattlerCard Game