How much revenue did System Shock® 2 (1999) make?

System Shock® 2 (1999) is free to play, so there is no copy-sales revenue to estimate.

How many copies did System Shock® 2 (1999) sell?

Q: How many copies did System Shock® 2 (1999) sell?

190 to 308 copies, based on its 3 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 190–308; from 3 reviews (3 user reviews); Thin evidence: 3 reviews. That range swings on one or two people, so read it as a hint, not a measurement.

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 System Shock® 2 (1999) out and predicted the genre from its 8 similar games. Every figure here, including System Shock® 2 (1999)'s, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 475k–551k

best case 1.7M (Atomic Heart)

Games like System Shock® 2 (1999)

The middle of these games

≈ 475k–551k copies

≈ $2.0M–$3.2M after Steam's cut

from ~14k 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 FPS (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: Atomic Heart at ≈ 1.3M–2.1M copies, ≈ $21.0M–$56.3M after Steam's cut. A breakout hit, far above a typical game.

What it took to get here

About half the games that made it here had over 10k reviews in their first month; the spread ran 5k to 18k.

The genre you'd be entering

Your set: Your set clusters on FPS (4 of 8) and Cyberpunk (3 of 8).
The winners: Winners here lead with Sexual Content + FPS, priced around $60. The breakout hits carry Sexual Content + Robots + FPS; a typical game here doesn't.
The era: The games you compared span 2011 to 2026, 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
System Shock® 2 (1999) 2013	Est. copies ≈ 495k–805k too small to compare SteamSpy 200k–500k	Est. revenue Free	Free	8k reviews Very Positive	CyberpunkRPG
The Surge 2017	Est. copies ≈ 420k–682k SteamSpy 1M–2M	Est. revenue $1.7M–$4.7M after Steam's cut $3.1M–$7.2M before the cut	$14.99	12k reviews Mostly Positive	Souls-likeAction
Atomic Heart 2023	Est. copies ≈ 1.3M–2.1M 3.6x vs typical SteamSpy 1M–2M	Est. revenue $21.0M–$56.3M after Steam's cut $38.1M–$86.7M before the cut	$59.99	51k reviews Very Positive	Sexual ContentFPS
Garfield Kart 2015	Est. copies ≈ 690k–1.1M SteamSpy 500k–1M	Est. revenue $947k–$2.5M after Steam's cut $1.7M–$3.9M before the cut	$4.99	14k reviews Very Positive	Cult ClassicCombat Racing
System Shock 2023	Est. copies ≈ 320k–521k SteamSpy 500k–1M	Est. revenue $3.5M–$9.5M after Steam's cut $6.4M–$14.6M before the cut	$39.99	13k reviews Very Positive	ActionImmersive Sim
E.Y.E: Divine Cybermancy 2011	Est. copies ≈ 507k–824k too small to compare SteamSpy 500k–1M	Est. revenue $1.4M–$3.7M after Steam's cut $2.5M–$5.8M before the cut	$9.99	8k reviews Very Positive	CyberpunkRPG
Yet Another Zombie Survivors 2026	Est. copies ≈ 362k–588k SteamSpy 500k–1M	Est. revenue $1.5M–$4.0M after Steam's cut $2.7M–$6.2M before the cut	$14.99	15k reviews Very Positive	Early AccessAction Roguelike
Cyber Manhunt 2021	Est. copies ≈ 389k–632k SteamSpy 500k–1M	Est. revenue $1.1M–$2.9M after Steam's cut $1.9M–$4.4M before the cut	$9.99	16k reviews Very Positive	SimulationRPG