- Clicking the cogwheel broke after the first day, as in - it did no longer provide anything. (had to use the 0.1/second spanners to progress income, until I could buy next worker type again.)
- After buying 9 upgrades day 1, and any other available upgrades day 2. On the third day, zero upgrades where available (even though I clicked the little arrow, multiple times to swap pages)
- When buying workers, would be nice if the amount purchased updated at the same time. Instead of having to switch between different worker-types to see how many you own.