I understand maybe not having enough money to pay the full price, but if you really want to play the game that badly, maybe just save up and support the dev with a full purchase? You said you wanted to "replay it" meaning you have played it before, and you enjoyed it. A good way to say, "Thank-you" in your case would be to just buy it without the sale, since no one has seen hide nor hair of the developer making a comeback any time soon.

But that's just my two cents :3

P.S.
I really enjoyed this game too!
Hope this helps!