Judging from Nathan Karr's review, this is almost the exact same game as Linear Quest I, but with some slimes added such that the game isn't rendered unwinnable if you choose the wrong things at the start. I don't think such an addition really required a new game, but that's not my place to argue.
I really don't see the point of the inevitable LinearQuest III. Honestly, the best thing about this is the writing; maybe having a look at Willy Electrix's games and see how they go about with dealing with a minimalist artstyle is your best bet.
I want to say that going for a system that eschews regular rpg battles entirely is in your best interest, but I do want to see you try and something together that requires a bit more thought than what is needed from this before you head down that route.