Hearts of Iron games in order

All 4 games of the Hearts of Iron series in the order they came out, from Hearts of Iron (2002) to Hearts of Iron IV (2016).

1. 
   Hearts of IronMac, PC · Development Studio
   24 Nov
2. 
   Hearts of Iron IIPC, Mac · Development Studio
   864 Jan
3. 
   Hearts of Iron IIIPC, Mac · Development Studio
   8729 Jun
4. 
   Hearts of Iron IVPC, Mac, Linux · Development Studio
   836 Jun