How much revenue did X-COM: Terror From the Deep make?

$82k–$219k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did X-COM: Terror From the Deep sell?

Q: How many copies did X-COM: Terror From the Deep sell?

59k to 97k copies, based on its 940 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 59k–97k; $82k–$219k after Steam's cut $148k–$337k before the cut; from 940 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 X-COM: Terror From the Deep out and predicted the genre from its 8 similar games. Every figure here, including X-COM: Terror From the Deep's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 5.8M–18.3M

best case 27.2M (The Forest)

Games like X-COM: Terror From the Deep

The middle of these games

≈ 5.8M–18.3M copies

≈ $43.9M–$204.3M after Steam's cut

from ~202k 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.

No genre covers most of your similar games. The closest is Turn-Based Strategy (4 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: The Forest at ≈ 20.7M–33.6M copies, ≈ $113.8M–$305.9M after Steam's cut.

The genre you'd be entering

Your set: Your set clusters on Turn-Based Strategy (4 of 8) and Turn-Based (3 of 8).
The winners: Winners here lead with Open World Survival Craft + Survival, priced around $20.
The era: The games you compared span 2010 to 2024, and 1 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
The Forest 2018	Est. copies ≈ 20.7M–33.6M 3.4x vs typical SteamSpy 20M–50M	Est. revenue $113.8M–$305.9M after Steam's cut $206.9M–$470.7M before the cut	$19.99	681k reviews Overwhelmingly Positive	Open World Survival CraftSurvival
XCOM® 2 2016	Est. copies ≈ 4.5M–7.4M SteamSpy 5M–10M	Est. revenue $25.0M–$67.1M after Steam's cut $45.4M–$103.3M before the cut	$19.99	109k reviews Very Positive	IsometricTurn-Based Combat
Divinity: Original Sin 2 - Definitive Edition 2017	Est. copies ≈ 7.1M–11.5M SteamSpy 5M–10M	Est. revenue $87.4M–$235.0M after Steam's cut $158.9M–$361.6M before the cut	$44.99	205k reviews Overwhelmingly Positive	Tactical RPGRPG
Balatro 2024	Est. copies ≈ 4.9M–8.0M 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
Sid Meier’s Civilization® VI 2016	Est. copies ≈ 15.7M–25.6M 1.9x vs typical SteamSpy 10M–20M	Est. revenue $259.5M–$697.7M after Steam's cut $471.8M–$1073.4M before the cut	$59.99	378k reviews Very Positive	StrategyTurn-Based Strategy
Sid Meier's Civilization® V 2010	Est. copies ≈ 13.3M–21.6M SteamSpy 10M–20M	Est. revenue $109.7M–$295.1M after Steam's cut $199.5M–$454.0M before the cut	$29.99	211k reviews Overwhelmingly Positive	Turn-Based StrategyStrategy
Persona 4 Golden 2020	Est. copies ≈ 2.2M–3.5M SteamSpy 1M–2M	Est. revenue $11.9M–$31.9M after Steam's cut $21.6M–$49.1M before the cut	$19.99	87k reviews Overwhelmingly Positive	JRPGGreat Soundtrack
Total War: WARHAMMER II 2017	Est. copies ≈ 4.2M–6.8M SteamSpy 5M–10M	Est. revenue $68.9M–$185.3M after Steam's cut $125.3M–$285.1M before the cut	$59.99	121k reviews Very Positive	StrategyFantasy