This was a lot of fun. Kudos for adding a bulk buy button. The one thing I would change is having the routes not disappear when you've drawn to far, since It always takes several tries to connect planets that are a valid distance. Excellent work!
Yea, now you have mentioned this I feel that the game is less fun with the route length. Will have to try without it or at least a large one
I think the problem is the the routes snap and it adds extra length invaliding them... Thanks for your feedback!