Update addendum (Patreon)
Content
You move with WASD, and look with the mouse.
Tapping left click will teleport a distance out in front of Meridiana(in front of where she faces, not the camera). If you hold the left mouse button down for a moment, a spell effect will appear with that can be aimed. When you release the button again, she will teleport to that location.
Holding down right click goes to an aimed mode, and while in that mode she can cast one of her two spells.
1 on the keyboard will toggle between them.
Esc will quit the demo.
Another keyboard button might do another thing.
Edit - I can't get the file to upload to patreon, so you can grab it on this link for now: https://www.dropbox.com/s/sgy9dlfrdbh74f7/DecemberProgressBuild.rar?dl=0