If you have Lutris, you can find a linux installer for ascension through there and give that a try. After following instructions (and you'll have to follow them exactly), you will be able to launch the game executable through Lutris.
The only annoying thing is that for game updates you'll have to run the linux launcher (you won't be able to launch the game from the launcher, it will error out), and launcher updates are a pain to deal with.
Hope this helps.