GTA 5 require internet to install? Answer – In pirated GTA 5, if you downloaded from some sites like – Oceanofgames, Apunkagames, etc then no need of internet to install GTA 5 Game in PC.
But, if you buy GTA 5 original Game CD, then you need the internet for installing GTA 5 game.
When you start the installation of GTA 5 game from the CD then you have to download some necessary files + you have to make an account in a social club or you need to login in social club + after installing GTA 5, you need to update Game for playing in PC otherwise, the game will not run. So for these all work, you need internet.
Mainly Rockstar Company updating their GTA 5 game for making more and more better. So after installing GTA 5 Game via CD, you need to update GTA 5 Game by the internet. ( you need approx more than 5 GB data for updating the game.
So overall, the fact is, GTA 5 require internet to install in PC if you bought Game CD Otherwise internet is not required if you downloaded from pirated sites like Oceanofgames, apunkagames,thepcgames.net, etc.