yeah it was meant to be played for about that long, and sadly enough because I only had 24 hours and couldn't make the game that much longer, I just threw in some random numbers for the upgrades and hoped that it would work well enough, and it does for about 16 minutes but then it goes above a certain point and it doesn't anymore. The main reason is because I never wanted the upgrades to be too expensive, because that's really boring, but they ended up being a bit too cheap in the long run.