Buildings

Buildings generate earnings.

Sometimes they break down. Repair them costs the same as maximum earnings.

To optimize your constructions, see Buildings Price Earnings.

Earnings
Earnings must be collected.

When 75% of the earnings is reached you can do the collection (yellow dollar sign). At 100% the accumulation of earnings stops and waits for collection (green dollar sign). 5 u/g ($)

Prices
You pay dollars for the building and for the upgrades.