PTK NP is acronym for Russian "New Generation Piloted Transport Ship" - partially reusable manned spacecraft currently under development by Russia for replacement Soyuz, analogue to US Orion spacecraft.
First launch was scheduled to take place in 2018.
Add-on includes:
Base spacecraft version with simple VC (only MFD's is functional);
Additional pressurized module;
New meshes for spacecraft launcher (Angara rocket).
Some scenarios require Angara Launch Vehicle add-on