I really enjoyed it! It's basically an adventure game. It would be better if there was some clearer indication that you finished the whole thing, you just complete the three missions and that's it: you should have a bigger "You win" with more bells and whistles!
Also, you can simply click on all villagers to save them, even if you don't know who is going to die. You should either be penalized for clicking the wrong villagers or you should need to be close to the villagers during the moment of their death to be able to save them. Also: the rewind sound becomes a bit annoying after some time.
But these are minor gripes. I really enjoyed the game overall. Good job!