Fora

I want to play a few games, but I only have a Linux machine (and then a laptop running horrible windows 8 but am looking to play on the other one)

i can't be bothered to buy a PS4 or XBox given hwo little time i have to play, and likewise for a gaming PC.

So thought i would try out playing on the linux machine, and in my searches i fell over this page, but the instructions all seemed a bit technical for me, and it wasn't very clear exactly how to install games. 

My question1 is: my linux machine doesn't have a CD/DVD drive, if i instead buy the game online and then download it, can it still be installed and played w playonlinux?

My question2 is: how do i do this more specifically?

My question3 is: will this also work for older games? (my machine isn't too powerful so thought i'd just go for some older titles). for example, GTA3, Red alert 3 or something like that.