Install and setup Quake 4
You can buy digital copy of Quake 4 from Steam or download official CD version from Downloads tab, but for CD you’ll need a valid key.
Installing a patch (only for CD version): download Quake 4 1.3 to 1.4.2 upgrade from Downloads tab, install it to the game folder.
Quake 4 for macOS: download the Mac App Store version of Quake 4 from Downloads tab, open *.dmg and copy app to Applications folder. Supported macOS versions: 10.6.8 Snow Leopard – 10.14.6 Mojave because no 32-bit apps support in Catalina. It’s free now, so you don’t need to crack or enter CD-key.
If you want to use clean original config, just start Quake 4 and connect to WwW server [msk.wwwq4.ru or eu.wwwq4.ru] to download necessary files including latest Q4max Competition Mod 0.82 and maps. Also you can download Q4max from Downloads tab and manually extract it to your Quake 4 folder.
Specific your controls, multiplayer and graphics settings.
Graphics fix
If you’re having troubles with ultra graphics and always getting a low-res textures, here is the fix (must be added to autoexec.cfg in q4base folder):
seta image_downSizeLimit "2048" seta image_ignoreHighQuality "0" seta image_downSizeBumpLimit "2048" seta image_downSizeSpecularLimit "2048" seta image_downSizeBump "0" seta image_downSizeSpecular "0" seta image_useCache "0" seta image_cacheMegs "100" seta image_cacheMinK "30" seta image_usePrecompressedTextures "1" seta image_useNormalCompressionLoadDDSForPal "1" seta image_useNormalCompression "0" seta image_useAllFormats "1" seta image_useCompression "0" seta image_downSize "0" seta image_lodbias "0" seta image_anisotropy "16" seta image_filter "GL_LINEAR_MIPMAP_LINEAR"