Рўрєр°с‡р°с‚сњ Рџрѕрґрір°р»с‹ / Basements (underground) ... -

While there are several technical papers regarding underground structures, the specific title you mentioned often refers to or modifications for simulation games like Project Zomboid or The Sims 4 . Possible Sources for "Basements" Resources

: If you need a "paper" floor plan for architectural reference, sites like Sketchfab provide digital scans that can be exported or printed as layout references.

(PDF) Seismic analysis of buildings with basements - ResearchGate