Aw man, this game is great. Point and click adventure games are my jam, and the humor in this one was just so fun. The random knight falling out of the sky, "you made a thing"... loved it. Great work!
However, since I loved it so much, I found myself wanting more. I feel like you could have done more with the Combining Items idea- maybe use it in more puzzles. Also, using more than just key pads as a way to open things would have made it just that much more interesting. But, all in all good work. It was a very fun experience. Would play again.