So I have had rimworld for a while but i never received a link with the download. instead it just downloaded it and i recently got my PC wiped. I have NO IDEA whatsoever on how to re download it, since i never got the email in the first place. i have searched my inbox up and down and never found the email PLEASE HELP I WANT TO BE ABLE TO PLAY AGAIN. :(
Try following the steps in this thread here. :)
https://ludeon.com/forums/index.php?topic=1875.0
Good luck!