Bonus Boosters is a Treasure Hunter promotion originally released in March 2017 that introduced four boosters which could be activated within Treasure Hunter for different perks.
Only one perk can be active at a time. After the perk's effect runs out, it can't be used again until a cooldown is suffered. Other perks can still be used while one is on cooldown.
The following table lists information about all the available perks:
|Booster||Description||Length (in keys used)||Cooldown (in keys used)||Further information|
|Lucky Purple!||Activate to ensure your next prize is of purple rarity!||1||200||This perk starts on cooldown. It provides access to the following discontinued lucky items in addition to current purple prizes:|
|Multiplier!||Activate to randomly boost the number of prizes you will receive, up to 5x prizes from each chest!||5||10||All five chests will use the same multiplier. The multiplier can be either 2, 3, or 5.|
|Extrasensory!||Activate to look inside the chests to see the gem rarity before selecting your prize!||5||10||Two to four chests' rarities are shown while the remaining remain unknown.|
|Upgrade!||Chance to upgrade prizes to the next rarity up!||5||25|
|Smouldering!||Activate and lamps and stars will become Smouldering lamps for a number of chests!||5||50|
|Deep Freeze!||Activate to freeze an additional 5 categories for free!||5||20||The first 10 frozen categories use Hearts of Ice normally, and freezes through the eleventh to the fifteenth are free.|
|Start Date||End Date||Update/Promo|
|10 October 2017||2nd Chance Tuesday|
|6 September 2017||11 September 2017||Bonus Boosters (September 2017)|
|25 April 2017||2nd Chance Tuesday|
|30 March 2017||2 April 2017||Bonus Boosters|