I'm not going to pretend I know when CS:GO was ported, but for a very long time (until the crate update) it was easily the least played version of Counter Strik

I'm not going to pretend I know when CS:GO was ported, but for a very long time (until the crate update) it was easily the least played version of Counter Strike. I think it was ported to Linux before it was successful, but I can't be sure.