I tried searching the forums before posting but since I didn't find any topics related I decided to post anyway.
I've had a lot of people asking me for ED demo, and I always thought there was non, however - there actually is!
It's a 1.5gb download that includes the tutorials only. It can give people the basic idea what the game is like and it's much easier to decide on a purchase based on first-hand experience. You can find the direct download for the installer here, or just check this reddit post.