This is my favorite game this jam, I spent like an hour and a half playing it. Some combinations of letters that I felt should work didn't always work, which got a little frustrating sometimes. But, I was eventually able to figure out how to make every single letter in the alphabet.
T was the bane of my existence. I was able to make it with an L where the short line of the L was on the top left combined with a sideways I. However, when I tried it with the short line of the L in the top right corner and a sideways I, it didn't work. So, I initially gave up on the correct solution entirely since it was the same thing in reverse.
S was also tricky to figure out. Combining U's to makes sense. But I was trying to do it with C's in the same exact shape to no avail. I feel like either should work since they essentially make the same shape.
Also, since there's a horizontal reflector factory, there should 100% be a vertical reflector factory. Would make certain letters like A easier to make. Also, there should be bonuses for finishing the word in a faster amount of time. Another bonus for doing it with the smallest number of factories. Then, the highest score possible, etc.
I also really liked the build-a-word feature, that provided a bunch of replayability (half of my game time was spent on that). Honestly, I'll be incredibly surprised if this doesn't end up as a finalist in Mark's video. The minimal art style gave me mini metro vibes. Overall, fun game, you guys should be proud!