X4: Foundations

View on Steam

X4: Foundations

Short description

X4: FOUNDATIONS brings our most sophisticated universe SIMULATION ever. Fly every ship, EXPLORE space or manage an empire; TRADE, FIGHT, BUILD and THINK carefully, while you embark on an epic journey. Experience tons of improvements with the massive 7.00 Update!

Developer
Egosoft
Publisher
Egosoft
Release
Fri, Nov 30, 2018
Price
$49.99
$9.99
80%
Reviews
25,463
Positive
79%
Followers
159,349
Owners (estimated)
1M – 2M
Concurrent players
3,388
Genres
Action, Simulation, Strategy
Features
Full controller support, Steam Trading Cards, Steam Workshop, Adjustable Text Size, Camera Comfort, Color Alternatives, Custom Volume Controls, Playable without Timed Input, DualShock Controller Support, DualSense Controller Support, Save Anytime, Stereo Sound
Tags
Space Simulation Open World Space Sim Exploration Sandbox 4X Sci-fi Strategy Economy Moddable Trading Flight Singleplayer 3D First-Person Management Action Immersive Sim Grand Strategy
Revenue (estimated, gross)~$51msomewhere between $44.5m and $89m · roughly 1M–2M copies

Review count and SteamSpy's owner range agree well enough to narrow the estimate down to this band. Multiplied by $44.51, the average price these copies actually sold for — weighted from the price history rather than taken from the $49.99 launch price. That is 11% below list price on average. Before Steam's cut, VAT and refunds. How these numbers are calculated.

Waiting for X4: Foundations to get cheaper? Name your price and we will email you when it gets there.

Watch this game Free account, no card. Already have one?

History

85 data points since Aug 15, 2026. Gaps mean nothing changed — the value carries forward.

Revenue (est.) ~$50.1m → ~$51m
Reviews 24,991 → 25,463
Followers 157,534 → 159,349
Concurrent players 2,141 → 3,388
Price $49.99 → $9.99
Positive reviews 79.4% → 79.5%

The revenue curve is an estimate, not a measurement. It is the only calculated series here: each interval takes the review growth of that period, multiplies it by the sales-per-review factor and by the price actually charged at the time, and adds the result to the running total. That is why it climbs more slowly through discount periods than the review curve next to it. The last point is the same figure quoted above — gross, before Steam's cut, VAT and refunds. How these numbers are calculated.

The blurred area is the rest of the history. 244 further data points reach back to Sep 1, 2017 — your plan shows the last 90 days of it. How far each series in particular reaches is written on its own chart; not every one of them goes back that far. The shape in the blurred area is decoration, not data: the figures are not in this page at all. Plus unlocks the complete series.

Lowest recorded price: $4.99 on Dec 18, 2025.

How crowded is this niche?

How full the niche around X4: Foundations is — measured on the tags it leads with, against every other combination on Steam.

±?? Space + Simulation + Open World

Combinations under 15 games are left out to reduce the influence of small samples. The games below share those tags and are free to browse.

Unlock every combination See the radar first →

Similar games that found an audience

Games sharing at least 3 of this title's leading tags, with enough reviews to have gone somewhere. Ranked by how much they overlap, not by how big they are. − missing and + extra mark the tags each one does not share with X4: Foundations. Studio counts the titles that developer has released — the closest thing to production scale that public data allows. It is not a budget, and nobody publishes those.

Image Name Studio Shared Tag difference Price Reviews Positive Released Revenue (estimated)
Elite Dangerous Elite Dangerous Frontier Developments 12 titles 5 − Sandbox + Sci-fi $19.99 82,697 77% Thu, Apr 02, 2015 $65.1m
$35m – $87.5m
Avorion Avorion Boxelware 2 titles 5 − Simulation + Building $24.99
$12.49
50%
13,046 90% Mon, Mar 09, 2020 $12.8m
$10.9m – $21.9m
Spaceflight Simulator Spaceflight Simulator Team Curiosity ✦ 2 titles 5 − Open World + 2D $14.99 9,551 97% Thu, Feb 17, 2022 $5.6m
$2.6m – $6.5m
Evochron Legacy SE Evochron Legacy SE StarWraith 3D Games LLC 3 titles 5 − Open World + First-Person $24.99 415 82% Mon, Jan 18, 2016 $489k
$489k – $812k
Kerbal Space Program Kerbal Space Program Squad first game 4 − Open World − Exploration + Physics + Science $39.99 121,587 96% Mon, Apr 27, 2015 $157m
$76.5m – $157m

There are more like this. Your plan shows the 5 closest neighbours; Plus and Pro show up to 100 — enough to see the shape of a niche instead of a sample of it.

See the full neighbourhood Or start from the radar →