Tips

The ingame help

The help icon in the game (bar at the top) always takes you to the content that is important for the current view.
For example, if you are in the production view of iron, the description of iron will be opened in the help.

Buildings to start

In the beginning it is worth to focus on simpler products. Especially a mine, a power plant or a spring are recommended.
The products, such as water, electricity, salt, etc., can be sold directly through the tenders in the market.
This gives you a solid base to build on.

Backup of the game state

In the settings in the game (gear icon) you can activate the iCloud backup.
This continuously creates a backup of your progress and protects the game state from a device failure.
If you ever need to replace your device, you can then restore your score directly to the new device.