Crusader Kings games in order

All 3 games of the Crusader Kings series in the order they came out, from Crusader Kings (2004) to Crusader Kings III (2020).

1. 
   Crusader KingsPC, Mac · Development Studio
   8415 Jul
2. 
   Crusader Kings IIPC, Mac, Linux · Development Studio
   843 Feb
3. 
   Crusader Kings IIIPC, Mac, Linux +2 · Development Studio, Lab42
   901 Sep