The writing is interesting, and even uplifting. I like Dr. Blackcraft and I love the puzzles you came up with! There are only a few items that can be picked up, and the game isn't super difficult, but that's good because the scope of the project fits into a game jam nicely. You made good use of the few things you did get into the game.
I was really annoyed by the game resetting itself; no one likes to solve a puzzle twice after finding the solution, especially if solving the puzzle has arbitrary wait times (the aliens take a while to kill). The game resets instantly if you drop a city in the water, but I feel like it should only reset to the beginning of a level. In short, the reset is a harsh consequence that doesn't add anything of value.
The game has a score counter and a Hard Mode, as if to pad the amount of content and replayability. I feel like these were unnecessary, since the interesting part of the game was the dialogue and clever puzzles. I wasn't motivated to play Hard Mode, because the game is so small I feel like I've seen everything already. Nevertheless, it was a fantastic effort and I like to see games that tell an interesting story in artistic fashion. <3