You can typically buy the game or the Collection (which includes various DLCs) on the Total War: SHOGUN 2 Steam Page.
This giveaway generally included the base game. Most DLC packs, such as the Dragon War Battle Pack or Hattori Clan Pack , usually required a separate purchase, though they were often discounted by up to 75% during the same period. Current Availability
The most notable official event occurred in , when Sega and Creative Assembly made the game permanently free-to-keep on Steam to encourage people to stay home during the global pandemic. Platform: Steam .