
You can get various boosts in the game, from various places!
(from the daily rewards, Expeditions, Event Mines, Event Seasons, and from the in-game shop).
These will increase your Cash while you're in the game, and your Idle Cash while you're away from the game.
If you activate more than one boost at the same time, they will queue up behind each other (if they are identical boosts) or they will stack together to give you a bigger boost (if they are different boosts).
For example:

If you activate another 2x boost, the time will add on to the current 59m 41s. But if you activate a 50x boost, this will be added to the rest and give you an 87x boost! Then with the ad boost, this would be a 174x boost!
Types of Boost
2x Income Forever

from the "2x Income Offer" from the in-game shop.
Permanent 2x boost of Cash (while you are in the game) in ALL MINES!
Can be combined with "2x Idle Cash Offer".
2x Idle Cash Forever

from the "2x Income Offer" and/or from the "2x Idle Cash Offer" from the in-game shop.
Permanent 2x boost of Idle Cash (while you are away from the game) in ALL MINES!
Can be combined with "2x Income Offer".
If you buy both of these offers, you will get 4x Idle Cash Forever.
2x Income

2x income for 1h in all mines -- from the shop, costs 70 Super Cash.
2x income for 4h in all mines.
2x income for 8h in all mines.
2x income for 12h in all mines -- from the shop, costs 400 Super Cash.
4x Income

4x income for 7d in all mines -- from the shop, costs 2700 Super Cash.
4x income for 14d in all mines -- from certain limited offers from the in-game shop.
5x Income

5x income for 5m in all mines.
5x income for 1h in all mines -- from the shop, costs 150 Super Cash.
5x income for 4h in all mines -- from the shop, costs 450 Super Cash.
10x Income

10x income for 5m in all mines.
10x income for 10m in all mines -- from the shop, costs 150 Super Cash.
10x income for 1h in all mines -- from the shop, costs 300 Super Cash.
10x income for 4h in all mines.
10x income for 12h in all mines -- from the shop, costs 1800 Super Cash.
20x Income

20x income for 5m in all mines.
20x income for 10m in all mines -- from the shop, costs 500 Super Cash.
20x income for 1h in all mines -- from the shop, costs 1000 Super Cash.
20x income for 4h in all mines -- from the shop, costs 3000 Super Cash.
50x Income

50x income for 5m in all mines.
50x income for 10m in all mines -- from the shop, costs 1500 Super Cash.
50x income for 1h in all mines -- from the shop, costs 3000 Super Cash.
100x Income

100x income for 5m in all mines -- from the shop, costs 2000 Super Cash.
100x income for 1h in all mines.
500x Income

500x income for 5m in all mines.
1000x Income

1000x income for 5m in all mines.
2000x Income

2000x income for 5m in all mines.
LEGENDARY EXCLUSIVE - only obtainable from the "Lucky Wheel".
LEGENDARY EXCLUSIVE - only obtainable from the "Easter Draw".
3000x Income
3000x income for 5m in all mines.
LEGENDARY EXCLUSIVE - only obtainable from the in-game shop.
Mystery Boosts

Gives you a chance to receive a random Boost Token.

Mystery Boost -- from the shop, costs 150 Super Cash.
Super Mystery Boost -- from the shop, costs 750 Super Cash.
Mystery Tickets
Allows you to play the "Mystery Boosts" for free!
You can get these tickets from Expeditions, Daily Rewards and certain limited offers from the in-game shop.

Mystery Boost Ticket (silver): 1 ticket for 1 free play of Mystery Boost.

Super Mystery Boost Ticket (gold): 1 ticket for 1 free play of Super Mystery Boost.
Ad Boost


from watching ads in each mine /or
on each continent when you have all the mines there unlocked /or
on "All Continents" when you have all the continents and mines unlocked.
Instant Cash Items
When you activate one of these, it will immediately give you the amount of Cash shown on the token to your total depending on which continent you are currently in. If you buy one of these from the in-game shop, the Cash will automatically be added to your total!
Instant Cash rewards from Event Mines, Event Seasons, Expeditions, are added into your "Inventory".

30m Instant Cash Item.
1h Instant Cash Item.
2h Instant Cash Item.
4h Instant Cash Item -- from certain limited offers in the shop.
8h Instant Cash Item -- from certain limited offers in the shop.
12h Instant Cash Item -- from the shop, costs 500 Super Cash.

1d Instant Cash Item -- from the shop, costs 900 Super Cash.

2d Instant Cash Item -- from certain limited offers in the shop.
3d Instant Cash Item -- from the shop, costs 2000 Super Cash.

5d Instant Cash Item -- from certain limited offers in the shop.
10d Instant Cash Item -- LEGENDARY EXCLUSIVE - only obtainable from the "Lucky Wheel".