The original quake.exe cannot render modern resolutions or use advanced features. Instead, download a source port:
If you own Quake on Steam or GOG, you automatically have the mission packs. Locate them in: Quake Pak Files Download
Copy the pak0.pak from each into the respective subfolders in your source port directory. The original quake
The Quake Pak Files Download feature allows users to download Quake pak files directly from the application. This feature will provide a convenient way for users to access and manage their Quake pak files. Copy the pak0