@PnYMaT, sorry for the late reply. You can get the game Steam key from your account "my games and items" page and activate in Steam. Then you can install CryoFall Editor from Steam https://steamcommunity.com/app/829590/discussions/5/1812044473314225973/
Hi, i have the Steam key, but i boycott Steam for many reasons. I buy my games (when it is possible) directly on editor web site. First they (you) win more money (no commission to pay at Steam) and i avoid DRM.
If i lost internet, i can install my game and play it. With steam, i must have internet to install my games, i need internet to play my games, i dislike this.
It will wonderfull if you put back editor on Atomic Torch account, like the game itself.
Many thanks for reading me and understand my point of view:)
Ps: sorry for my english, i'am french ^^