The Campaign is the main progress element of the game. You’ll earn the majority of your resources from here.
It’s made up of different stages on the map that you must progress through.
Each stage increases in difficulty, but also increases the amount of idle rewards you can earn.
Idle Rewards are accumulated automatically every minute. The amount you earn is based on your campaign stage progress.
The rewards contained in the idle chest can be almost anything in the game, except heroes. Squad Experience, Hero Experience and Battle points are always guaranteed to be a reward.