I have 7 complete screens incorporated into r1.lvl so far (I've not much time for this). There's a small puzzle with a goal to turn off the electric arc and enter the facility. I just don't know whether this is enaugh to be a demo.
And the whole thing is going to be an addon with a simplistic plot of infiltrating glukkon chemical facility (How about the facility's shutdown leading to an ecological catastrophe due to Abe traditionally shutting down ALL the power and complicated technological processes going fubar
?).