The content related to likely refers to historical versions of the popular A Game of Thrones total conversion mod for Crusader Kings II . While the mod eventually progressed to version 2.2 and beyond, version 0.6.1 and 1.6.1 were major milestones in its development. Core Mod Features
: Players can lead noble houses, the Night's Watch, or merchant republics in Essos. Significant Early Versions
If you are looking for specifically "6.1" content, it likely pertains to these releases:
The A Game of Thrones mod transforms the base game into the world of George R. R. Martin's A Song of Ice and Fire . Key features include: