PC version Fans have made a PC version. Some are still early, so read the project page first.
Fans took Bloodborne - bbport Fork apart and rebuilt it so it runs natively on a computer, often with widescreen, higher frame rates and mods. Here is the project we know about:
Native x86-64 Windows loader for Bloodborne (CUSA03173) with native CPU execution, Win32 runtime, and shadPS4-based Vulkan GPU rendering. Based on deadinside28's bbport.