X4: Foundations — compare key prices
About the game
A space sandbox where you start with a single ship and end up managing fleets, stations and entire economies. The whole universe is simulated — NPC factories genuinely produce and trade — and you can personally fly every ship or command from the map.
Did you know?
German studio Egosoft has been making the X series since X: Beyond the Frontier in 1999; X4 is the entry that won fans back after the poorly received X Rebirth.
Best price today
€9.99 ≈ 1,173 RSD
updated 16 min ago
Steam best price best catch best price Official store
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Lowest — official stores
€9.99
Jun 2026
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FAQ
Are keys from these stores legal?
Buying is legal — keys come from the grey market, so a small deactivation risk exists. That's why we only list sellers with buyer protection.
Which key region should I pick?
Global activates everywhere. Regional keys (Europe, North America, RU-CIS) only work on accounts from that region — use the Region filter to match your account.
What is an activation platform?
The service where the key activates — Steam, GOG, Epic or the publisher's platform. A key for one platform won't work on another, hence the separate filter.
What's the difference between editions?
Standard is the base game; Deluxe usually adds an expansion or bonus content. The edition filter shows exactly that variant, with no mixed prices.