How much revenue did Terminal 81 make?

$10k–$26k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Terminal 81 sell?

Q: How many copies did Terminal 81 sell?

7k to 12k copies, based on its 288 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 7k–12k; $10k–$26k after Steam's cut $18k–$41k before Steam's cut; from 288 reviews (Very Positive)

Copies are estimated from the public review count, adjusted for release year, and cross-checked against SteamSpy's own estimate.

Did the prediction match what actually happened?

We hid Terminal 81 and predicted how it would do from its 8 similar games. Every figure here, including Terminal 81's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 2.0M–3.5M

best case 27.4M (Phasmophobia)

Games like Terminal 81

A typical game among these

≈ 2.0M–3.5M copies

≈ $21.2M–$38.1M after Steam's cut

from ~55k reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

6 of the 8 similar games are hits.

Best case: Phasmophobia at ≈ 20.9M–33.9M copies, ≈ $114.8M–$308.5M after Steam's cut.

What their first month looked like

About half the games that made it here had over 7k reviews in their first month; the range was 8 to 40k.

The genre you'd be entering

These games: The similar games share Exploration (5 of 8) and Horror (4 of 8).
The winners: Winners here lead with Horror + Psychological Horror, priced around $20.
When they shipped: The similar games span 2015 to 2024, and 2 of the 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 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
Phasmophobia 2020	Est. copies ≈ 20.9M–33.9M 15x vs typical SteamSpy 10M–20M	Est. revenue $114.8M–$308.5M after Steam's cut $208.6M–$474.7M before Steam's cut	$19.99	842k reviews Very Positive	HorrorOnline Co-Op
Firework 2021	Est. copies ≈ 1.1M–1.8M SteamSpy 500k–1M	Est. revenue $3.0M–$8.1M after Steam's cut $5.5M–$12.5M before Steam's cut	$9.99	44k reviews Overwhelmingly Positive	HorrorIndie
DREDGE 2023	Est. copies ≈ 1.4M–2.3M SteamSpy 1M–2M	Est. revenue $15.6M–$41.9M after Steam's cut $28.4M–$64.5M before Steam's cut	$39.99	57k reviews Overwhelmingly Positive	ExplorationFishing
Outer Wilds 2020	Est. copies ≈ 2.7M–4.4M 2.0x vs typical SteamSpy 1M–2M	Est. revenue $18.5M–$49.7M after Steam's cut $33.6M–$76.4M before Steam's cut	$24.99	108k reviews Overwhelmingly Positive	ExplorationSpace
SOMA 2015	Est. copies ≈ 2.6M–4.2M SteamSpy 2M–5M	Est. revenue $21.4M–$57.4M after Steam's cut $38.8M–$88.3M before Steam's cut	$29.99	53k reviews Overwhelmingly Positive	Horror Psychological Horror
What Remains of Edith Finch 2017	Est. copies ≈ 1.8M–3.0M SteamSpy 500k–1M	Est. revenue $10.1M–$27.2M after Steam's cut $18.4M–$41.8M before Steam's cut	$19.99	53k reviews Overwhelmingly Positive	Story RichAtmospheric
Cursed Baby 2024	Est. copies ≈ 248–403 too small to compare SteamSpy under 20k	Est. revenue $272–$732 after Steam's cut $495–$1k before Steam's cut	$3.99	10 reviews Positive	AdventurePuzzle
Tostchu 2024	Est. copies ≈ 16k–25k too small to compare SteamSpy under 20k	Est. revenue $34k–$92k after Steam's cut $62k–$141k before Steam's cut	$7.99	625 reviews Very Positive	Psychological HorrorLore-Rich