Normal Maps tangent space type?

[Tosyk]

Hi, I'm extracting some models from Absolution thanks to your editor. One problem tho, every time I use normal maps in blender, 3ds max, marmoset or anywhere else they show me seams - despite inverting channels.

However, in the game and your editor viewport, the normal maps are perfect.

May I ask you to shed a light on how do you render normal maps so perfectly? Maybe you know how to use them in blender?