Official specs from Steam

Vampire: The Masquerade - Bloodlines system requirements

Minimum and recommended PC specs as listed by the developer on Steam.

Minimum

Note3D hardware accelerator card required - 100% DirectX® 9.0c-compatible 64MB video card and drivers
Note1.2 GHz Athlon™ or 1.2 GHz Pentium® III processor or higher
Note384MB of RAM (512MB of RAM recommended)
NoteMicrosoft® Windows® 98/ME/2000/XP*
Note3.3 GB of uncompressed hard disk space for game files and saved games (plus 1.4 GB for Windows® swap file)
Note100% DirectX® 9.0-compatible 16-bit sound card and drivers
Note100% Windows® 98/ME/2000/XP-compatible mouse, keyboard, and drivers
NoteDirectX® 9.0c
NoteAll ATI® Radeon® Chipsets
NoteAll NVIDIA® GeForce(tm) Chipsets
NoteMatrox® Parhelia(tm) Chipset

FAQ

Does Vampire: The Masquerade - Bloodlines run on Mac or Steam Deck/Linux?

There is no native macOS version. There is no native Linux build (Proton compatibility may vary).