The following locations are only accessible during Act IV.
- Clothing Shop
- Gun Shop
- Airport
- Old School
- Nico's Place (Russia's HQ)
- Bar
- South Slum Buildings
- North Slum Buildings
- Cottages
Oddly, St. Petersburg appears nothing like the real city, but more like a town in the St. Petersburg region. The Sift Heads representations of locations like Chicago, USA and Tokyo, Japan are significantly more realistic.