From Exodus3000 Wiki

Jackpots reward the player with a larger sum of Mars Dollars. The chances of finding a jackpot increases with the amount of settlements the player governs, joins, and the amount of settlements the player's alliance's governs.

Exodus3000
Statistics	Weapons | Defense | Intelligence | Security | Radar
In-game Elements	Dig | Cards | Missions
In-game Locations	Mars | Homestead | Abandoned Homesteads | Settlements | Outposts | Volcanoes | Ruins | Craters | Plains | Dunes
Rules and Regulations	Alliances | Basics | Cheating | Payouts | Purchases | Special Prizes | Referrals | Cards | Dig for Treasure
Official Website	Official site