itch.io

Thanks. You are right. With the app, all the public versions are accessible. I installed all versions, but no version is able to run on my mac.

I would like to try older version. Newer versions cant be  played on my macos catalina. They start, change the mouse icon and are closed, during 2 seconds.

- Elevator which can put the cat one level lower into the ground. Upgradeable to reach 1 more level deeper with each upgrade.

- Under the ground, after digging dirt free pipes and places, same buildings can be used like at the surface. Perhaps little different color each level? And  cheaper?

- No underground storm.

- find an dig resources like coal and others

- build rails and fast trains

- greenhouses with flowers and other nice plants. Build big expandable parks. No need to ware a space suit.