Oh no! You are right. I did not hit ctrl.
Now it worked fine and I could finish the tutorial. Thank you for the info! I did not read the first sign in that room correctly... I guess also because the not-inverted mouse distracted me so much... :D
Btw. I think it would be helpful if the arrow on the lower right corner of the info field also showed (E) as a hint what button I have to press to read on. I tried space and right cursor to read but only found out its just "E" again to read the full sign...
This is so cool! The enemies! The sounds, the artstyle. Its just fantastic. Reminds me so much of Sacrifice by Shiny. One of my absolute favorite games!