Thanks! Haha going straight down was indeed a strategy that we tried to work against by scaling the deadline faster and making the oil resource worth a bit more, and the idea was to have a bit of progression where you start with the laser, and then transition to rail cannon upgrades to actually make that weapon have a positive return and transition to mining with oil.
As usual we overscoped quite a bit, and so on the last day I wanted to really lock down the features but after playtesting we just really thought an upgrade system for some kind of progression was needed.
Anyway, I'm glad to hear that you found the game to function well. It was a bit of a gamble hoping that all the systems came together at the end but it seemed to work out quite fine.