X4 Foundations X4 基石/基奠 [DLC 解锁] [DLC Unlock] [Steam] [Windows & SteamOS] 更新测试版 v9.00 Beta 11 [2026-05-23] | 更新 v8.00 Hotfix 4 [2025-10-14] | 至最新《Envoy Pack 特使扩充包》
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