How many copies did Inferna sell?

64k to 104k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Inferna make?

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

How big is Inferna?

Estimated owners: ≈ 64k–104k; from 2k reviews (Mixed)

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 Inferna out and predicted the genre from its 8 similar games. Every figure here, including Inferna's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 6.4M–11.0M

best case 35.1M (ARK: Survival Evolved)

Games like Inferna

The middle of these games

≈ 6.4M–11.0M copies

≈ $48.5M after Steam's cut

from ~162k 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: ARK: Survival Evolved at ≈ 26.7M–43.4M copies, ≈ $110.1M–$296.0M after Steam's cut. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on MMORPG (6 of 8) and Open World (4 of 8).
The winners: Winners here lead with Open World, priced around $15. The breakout hits carry Open World + Looter Shooter + FPS; a typical game here doesn't.
The era: The games you compared span 2013 to 2022, 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
VRChat 2017	Est. copies ≈ 9.2M–15.0M 1.7x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	268k reviews Mostly Positive	VRFree to Play
SMITE® 2015	Est. copies ≈ 5.9M–9.5M SteamSpy 10M–20M	Est. revenue Free	Free	120k reviews Mostly Positive	Free to PlayMOBA
Trove 2015	Est. copies ≈ 4.5M–7.4M SteamSpy 10M–20M	Est. revenue Free	Free	93k reviews Mostly Positive	Free to PlayOpen World
Lost Ark 2022	Est. copies ≈ 5.0M–8.2M SteamSpy 50M–100M	Est. revenue Free	Free	203k reviews Mostly Positive	MMORPGFree to Play
FINAL FANTASY XIV Online 2014	Est. copies ≈ 4.8M–7.8M SteamSpy 2M–5M	Est. revenue $26.3M–$70.8M after Steam's cut $47.9M–$108.9M before the cut	$19.99	85k reviews Very Positive	MMORPGRPG
Destiny 2 2019	Est. copies ≈ 19.0M–30.9M 4.1x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	661k reviews Mostly Positive	Free to PlayOpen World
Path of Exile 2013	Est. copies ≈ 15.8M–25.6M 1.5x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	250k reviews Very Positive	Free to PlayDark Fantasy
ARK: Survival Evolved 2017	Est. copies ≈ 26.7M–43.4M 4.8x vs typical SteamSpy 20M–50M	Est. revenue $110.1M–$296.0M after Steam's cut $200.2M–$455.4M before the cut	$14.99	776k reviews Very Positive	Open World Survival CraftSurvival