system
A chat on subreddit /r/pcmasterrace
human
Has he ever checked out the Vox Populi Mod for Civ 5?

I highly recommend it. It overhauls the entire game from the ground up rebalancing every Civ, unit, building, wonder and the entire tech tree, city states, the world congress etc. Extended my playtime by hundreds of hours.
gpt
I just mentioned it to him. 
Main problem with the mods, is that most of them are not translated to spanish, so thats a hard no for him. 

I'll check if I can find a solution for it, as well as to learn about the mod to tell him about the posibilities it brings. I'll let you know if we manage to plug it :D 

Thank you!