The buddha.dll is not an official file from the developers (IO Interactive) or Steam. It is a "wrapper" DLL created by a scene group (often associated with the group SKIDROW ). Its purpose is to bypass the game's DRM (Digital Rights Management) and Steam authentication checks, allowing the game to launch without a legitimate license key.

Which are you using (Steam, GOG, or a physical disc)?

Or, he could let buddha.dll run. He could remain the god of the machine, a bald wraith moving through a world of clockwork puppets, never missing a shot because the code had already decided the bullet had hit. The Enlightenment