baboeska wrote, that offline installer is not available. That is not true! ☝️ On GOG website, go to your username (top of the page), select Games, locate Quake 4. In this pop-up window below there is a section named DOWNLOAD OFFLINE BACKUP INSTALLERS. Click on this or select the small triangle and it should open up the offline installer files. There are two of these in the time of writing this: Quake 4 (Part 1 of 2) - this is an .exe file and (Part 2) a .bin file. Version number is: 1.4.3 lang update. The .exe file is 1 MB in size and the .bin file is around 3.1 GB. About the game itself has been written countless informations, just my two cents: if you like linear (corridor) shooter games, punchy weapons and dark places, this is a solid experience. Not too long, just the right length, it doesn't overystay its welcome.
