Old World Blues patch 1.3.4

Update 1.3.4 was released on April 4, 2019.

Patch notes

- Updated to 1.6.2

- Added icons to Troll Warren's national spirits to replace the `?` icons they had.

- The naval deployment screen didn't show taskforces and theatre titles: this has been fixed.

- Fixed the Legion mistakenly telling the player robots only took a day to research (cheeky Caesar).

- Fixed continent errors introduced by 1.6.2