Neat little game!
At first, I felt a bit weird about going so fast but I kinda like it now! Would like an option for the mouse sensitivity though, since I tended to spend more time turning around than running around.
I also had some issues with picking up keys every now and then!
I think what could also be good is to add some objects around the map to act as markers, I ran into the same corridor quite frequently since I couldn't remember if I went there before since currently everything looks similar.
Regardless, still a neat game! Interested in seeing how it'll be iterated upon