How much revenue did Eon Altar make?

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

How many copies did Eon Altar sell?

Q: How many copies did Eon Altar sell?

33k to 54k copies, based on its 793 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 33k–54k; from 793 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 Eon Altar out and predicted the genre from its 8 similar games. Every figure here, including Eon Altar's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 3.1M–10.1M

best case 18.6M (Brawlhalla)

Games like Eon Altar

The middle of these games

≈ 3.1M–10.1M copies

≈ $10.9M–$32.4M after Steam's cut

from ~105k 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.

No genre covers most of your similar games. The closest is 4 Player Local (3 of 8), so the genre you lead with is still undecided.

Of the 416 indie games that passed 1,000 reviews in 2022, 11.8% were novel genre mixes and 88.2% stuck to an established genre. Published indie market research.

Best case: Brawlhalla at ≈ 14.2M–23.0M copies.

What it took to get here

About half the games that made it here had over 9 reviews in their first month; the spread ran 7 to 528.

Under about 100 in month one, almost nothing recovers.

The genre you'd be entering

Your set: Your set clusters on 4 Player Local (3 of 8) and Co-op (3 of 8).
The winners: Winners here lead with Fighting + 2D Fighter.
The era: The games you compared span 2012 to 2025, and 2 of your 8 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
Brawlhalla 2017	Est. copies ≈ 14.2M–23.0M 3.9x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	411k reviews Mostly Positive	Free to PlayMultiplayer
Gang Beasts 2017	Est. copies ≈ 2.3M–3.8M SteamSpy 2M–5M	Est. revenue $12.7M–$34.1M after Steam's cut $23.1M–$52.5M before the cut	$19.99	67k reviews Very Positive	FunnyPhysics
Stick Fight: The Game 2017	Est. copies ≈ 4.3M–7.0M SteamSpy 2M–5M	Est. revenue $5.9M–$15.9M after Steam's cut $10.8M–$24.5M before the cut	$4.99	125k reviews Very Positive	MultiplayerFunny
Castle Crashers® 2012	Est. copies ≈ 8.9M–14.4M SteamSpy 5M–10M	Est. revenue $36.6M–$98.3M after Steam's cut $66.5M–$151.2M before the cut	$14.99	140k reviews Overwhelmingly Positive	2DOnline Co-Op
Overcooked! 2 2018	Est. copies ≈ 2.6M–4.1M SteamSpy 2M–5M	Est. revenue $17.5M–$47.2M after Steam's cut $31.9M–$72.6M before the cut	$24.99	84k reviews Very Positive	MultiplayerOnline Co-Op
Knighted 2021	Est. copies ≈ 595–967 too small to compare SteamSpy under 20k	Est. revenue Free	Free	24 reviews Positive	Turn-Based Tactics Puzzle
Hex Gambit: Respawned 2024	Est. copies ≈ 273–443 too small to compare SteamSpy under 20k	Est. revenue $1k–$3k after Steam's cut $2k–$5k before the cut	$14.99	11 reviews Positive	3DTurn-Based Tactics
Sunderfolk 2025	Est. copies ≈ 56k–91k SteamSpy 20k–50k	Est. revenue $768k–$2.1M after Steam's cut $1.4M–$3.2M before the cut	$49.99	2k reviews Very Positive	Tactical RPGFantasy