Glad you liked it. There's a fairly large overhaul in the works at the moment, hoping to have some news about that soon. For the inventory, you should be able to use space to select items, you shouldn't need to touch the mouse at any point.
I was able to use the space bar to interact with the world like the enter key would, but it wouldn't let me bring up the menu in general if I wanted to look at the items or re-read some of the documents. I'm on windows 10 if that helps
I'll have a look in to it but I have a feeling if it was a bug I've already fixed it on my current build when I re-worked the controls. Thanks for the report though!
