Not sure if this is the right place to ask, but do you remove games from your hard drive after you have played them?? I am finding I have a lot on the hard drive and think that after you have removed them you can go to your 'account' and install them again if you want to.
am I right??

If this is not the right place, sorry, and can you put it where it should be.

Are you talking about Big Fish games?
If you are, then you can add them back when you want to.
Also at GOG you can redownload games you've bought from them from your account.

For other downloadable games it depends on where you got the game from.

It is mostly Big Fish, I thought it was right that once you had bought them you need not keep them on your hard drive, thank you for the reply

thanks for the question AND the answer. I was just wondering about that too!