X games in order

All 6 games of the X series in the order they came out, from X: Beyond the Frontier (1999) to X4: Foundations (2018).

1. 
   X: Beyond the FrontierPC · Egosoft
   1 Jul
2. 
   X2: The ThreatMac, PC, Linux · Egosoft
   7 Aug
3. 
   X3: ReunionPC, Mac, Linux · Egosoft
   6828 Oct
4. 
   X3: Terran ConflictPC, Mac, Linux · Egosoft
   6516 Oct
5. 
   X RebirthPC, Mac, Linux · Egosoft
   3115 Nov
6. 
   X4: FoundationsPC, Linux · Egosoft
   6830 Nov