Yes! I’ve been thinking a lot about the progression system. Here’s one idea:
When you destroy the last layer of a tower → a new tower of sand for example appears with much more HP (maybe +100%), and the previous tower also respawns with around +25% more HP. In the new tower you don’t have miners yet, so you’ll need to save some money and buy new miners, basically restarting the cycle — while your previous miners keep digging in the first tower.
For every tower you destroy, you’d earn a special “biome coin” for the prestige tree. If you ever feel stuck, you can prestige using the coins you’ve collected and go faster and further in the next run.
What do you think about this system? I’d love to hear your opinion! :D