Ooh thanks! I had never suspected that the spike could have been that this is actually super helpful for me for optimizing it for the update, thank you!
I was kinda stupid when making upgrades it doesnt have a real purpose buuut in the new version you need to have met a gross revenue observations quota before the next wally spawns which gives upgrades a purpose
Hey im really sorry about that, what happened was the progression was too fast so i scaled up the exponential growth but that ended up crossing out later upgrades. But dont worry i am working on an update that expands the mechanics of the game and you will be able to play as long as you want