Money and Offline Earnings
The official description says to make money, upgrade your drill, and that your animals earn cash while you are offline. It does not publish rates or a detailed economy table.
Practical steps
Use the amount displayed in-game to decide whether to upgrade your drill or continue digging. The public game description confirms this connection but does not state prices, earnings per egg, or upgrade multipliers.
Confirmed details and limits
Offline income is attributed to animals on your farm. Check the game when you return to see what it credited; the public source does not specify an offline duration cap or collection button.
Rebirth appears in creator-recorded gameplay, but the official public description does not explain its requirements, reset effects, or rewards. Confirm the current in-game prompt before choosing it.
Sources
FAQ
How do I get eggs?
Drill to increase Power, dig down, and bring eggs to your farm.
Do animals earn money offline?
Yes, the official listing says animals earn cash offline; no rate or time limit is given.