So happy to hear that! I've played "Off Grid" as you may remember and really liked it too! :) And I don't think my game is better, they're both good at different aspects I think.
I discovered it through my Ambernic, great game. Yes the “combine items” is a cool idea. I think your system has more polish than even stranded kids. I found stranded kids difficult at first, lots of trial and error over combinations. I think I had to look for online help! I love the visual ques you’ve put into your system.