Yeah, I ran out of time. The plan was was that the upper layers would be melting, so you had to stay ahead of that and balance the risk of going out of your way to collect toppings to dig better vs going straight down to stay ahead of the melting.
I squandered a lot of the time, and everything took longer than anticipated. Unfortunately everything that would have made the game worth playing was put off in favor of things that would make the game "complete".
I did have time to add a timer, and considered it, but I knew I wouldn't have time time to playtest it and balance it against the upgrade schedule. The last thing I wanted to do to anyone who actually played this thing, was make them try again if I wasn't generous enough with the timer.
Thanks for playing, thanks for the feedback. I think once Godot version 4+ supports exporting C# projects I might revisit the project and get it to "worth playing for 15 minutes in browser"