Any chance for this (and the prev chapter) gets updated to support playing one-handed?

Doesn't need anything too complicated, just add wasd for movement and backspace as cancel/menu

Please?

If you're right-handed it's 90% of the way there already: 

Arrow keys

Enter for ok

Shift for run

The only thing holding it back is that cancel is either esc or x. Potentially I could add \ or ' as an option for that instead. And it's probably possible to put together a similar setup for the left side. Not a priority right now though unfortunately, I really gotta focus in and start plowing through the map making/system design/writing now that the assets are done for 3. Will definitely keep it in mind once this next chapter is out though.

with a full-size or tkl keyboard, the insert key works as cancel FYI