Thank you for playing, and glad you liked it! Agree that the deliveries might not be strictly necessary in the current state of the game. Just surviving as long as possible without getting stuck migt work just as well. My idea was that the deliveries would make it easier to expand it with more varied levels in the future.
I can see what you mean about out games being somewhat similar. I like how you managed to take the same core idea and turn it into a less stressful, but just as challenging game!