Profile updated
Action indie game X4: Foundations comes from Egosoft, which both developed and published it. Released in 2018, it has 28,769 Steam reviews with 80% positive, and launched at an initial price of $49.99.
Overview
X4: Foundations is a 2018 Action game developed by Egosoft and published by Egosoft. On Steam it has gathered 28,805 player reviews, 80% of them positive, which counts as a mostly positive reception among indie titles in the Action category. The game is available on linux, windows, and launched at $50. The pairing of developer Egosoft with publisher Egosoft is one of the studio-publisher relationships indielist tracks, letting players find comparable games and letting developers and investors study how Action projects reach the market. indielist's white-box method estimates its lifetime sales at roughly 1.4 million to 3.2 million units, with the full Boxleiter factor breakdown shown on this page rather than a single black-box figure. Within indielist's catalog of indie games mapped to their studios, publishers, and funding, X4: Foundations can be compared against similar Action titles and benchmarked on review counts and estimated sales.
Reviews
28,805
Positive
80%
Steam appid
392160
Engine
Unknown
Sales estimate
vv1.01.4M to 3.2M
units (median: 2.3M)
≈ $39.5M to $92.1M net revenue (Steam cut + refunds + regional discount applied)
+ - How is this calculated?
| Factor | Adjustment |
|---|---|
| base | +50 |
| year_2018 | +15 |
| price_$50 | +15 |
| positive_80% | 0 |
| final NB | 80 |
Confidence range: median × [0.6, 1.4]. Boundary protection: NB ∈ [15, 150].
Methodology & limitations
Sales estimates use a multi-factor Boxleiter method against public Steam review counts.
They are not authoritative sales data. Actual sales can deviate by
±50% in either direction. Free-to-play games, deeply discounted titles, and games
with heavy bundle distribution have larger error margins. Algorithm version
v1.0.
indielist estimates lifetime unit sales for X4: Foundations at roughly 1.4 million to 3.2 million copies, with a median around 2.3 million, derived from its 28,805 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $65.8M in net revenue after Steam's 30% cut, regional pricing, and refunds. Unlike black-box trackers, the full calculation is shown on this page: a base review-to-sales multiplier is adjusted for release year, launch price, review sentiment, studio size, and genre, and every adjustment is listed so developers, publishers, and investors can audit exactly how the figure was reached. The range itself reflects genuine uncertainty — review-to-sales ratios vary widely between games — so indielist publishes a low, median, and high band rather than a false-precision single number, and treats free-to-play, heavily discounted, and bundle-distributed titles as having wider error margins still.
Price history
90d · low $25.49Over the last 90 days the price ranged from $25.49 to $49.99, averaging $47.50 across 2 discount windows, with a historical low of $25.49 on 2026-05-13.
Synthetic series for demo. Real ITAD price history loads after Day 3 ingest.
Where to buy
Affiliate disclosureLive prices from public feeds, cheapest first. Some are affiliate links — we may earn a commission at no extra cost to you. Learn more.
Platforms
linuxwindows
Genres
Frequently asked questions
- How many copies has X4: Foundations sold?
- indielist estimates X4: Foundations has sold between 1,382,640 and 3,226,160 units (median 2,304,400), derived from its 28,805 Steam reviews with the white-box Boxleiter vv1.0 method. The full breakdown is shown on the page.
- Who developed X4: Foundations?
- X4: Foundations was developed by Egosoft and published by Egosoft.
- When was X4: Foundations released?
- X4: Foundations was released in 2018.
- How many reviews does X4: Foundations have on Steam?
- X4: Foundations has 28,805 Steam reviews, of which 80% are positive.
Ecosystem
indielist positions X4: Foundations within the Action segment so players can surface comparable titles by shared tags and genre rather than by storefront promotion. On the developer side, Egosoft's other releases and Egosoft's wider catalog are one click away, letting developers benchmark where X4: Foundations sits among a studio's body of work and how its publisher's portfolio performs. Because indielist maps studios, publishers, games, and funding into one connected graph, the same X4: Foundations page serves three audiences at once: players hunting their next Action game, developers studying how comparable projects were positioned and what they sold, and investors tracing which teams and labels are active in the space. A machine-readable markdown mirror of this page is published at the same path with a .md suffix for AI assistants, and its review, price, and sales-estimate figures are refreshed on a schedule rather than frozen at launch.