End of day 4 - I was placing another relay point and the results came up, music went buggy and game was softlocked. Browser tossed a dialogue window my way after a minute or so telling me the page was unresponsive.
Really cool idea. I only wish there was an endless type mode included, because each day felt quite short once you got going.
Only other feedback I have is that you might want to look into those new star systems being generated. Seems like more often than not they generate in a spot that I already have almost completely covered. Would increase the difficulty a fair bit if they spawned more towards the outside instead of just *somewhere*.