I haven't tried downloading it yet; did you already and not have any issues? I assumed it's a virus purely because this game is ancient and hasn't been updated in years, nor has the dev's X page, and the webpage is dead. So I figured scammers felt safe to upload a fake version.
EDIT: Though, apparently the Patreon page was just updated and this is an official release?
EDIT 2: Ah! I checked the user, since if it were a scammer they probably would have registered recently. Registered in 2018 and has plenty of posts and followers, so it should be safe.