Random Box

Random boxes appear and give bonuses when jumped into from the bottom. They appear every 30 to 120 seconds, and with the Mega Random Box upgrade it can be increased to 20 to 80 seconds and with the Roll The Dice upgrade it spawns every 17 to 68 seconds. Random boxes will not spawn while a menu is open on mobile in portrait mode.

When the Special Random Box upgrade is purchased, there is a 5% chance that a spawned Random Box is a Special Random Box, which will take you to the Minigame.

Random Box Bonuses

These are the possible bonuses from activating a random box. Their durations can be modified by upgrades.

Name	Bonus	Unlock Requirement
OMG	Get 8 to 12 hours of CpS. Also unlocks Extremely Lucky.
Equipment Bonus	Increase current CpS by 10% per level of a random equipment for 40 seconds.
Coin Value	Multiply coin pickup value by 15 to 25 for 15 seconds.
Dual Randomness	Spawn two random boxes next to each other.	Get Dual Randomness
Gemstone Rush	Add +5 to 25% to chance to spawn gemstones for 90 seconds.	Get Gemstone Rush
Increase Souls	Multiplies souls gained from slaying enemies by 10 to 20.	Get Souls Bonus
CpS Multiplier	Multiply current CpS by 9 for 80 seconds.
Horde	Causes many enemies to appear on screen for 7 seconds. Only applies to flying enemies, and can not be awarded on a map with no flying enemies (this restriction is removed when you purchase Mega Horde).	Purchase Enemy Realm
Frenzy	Causes many coins to appear on screen for 10 seconds.
Found Coins	Gives coins equal to picking up 20 to 70 coins on screen.

Random Box Chances

The chances of getting a given event are dependent on the Slayer's current map and the Bonuses that are unlocked. For example, if a map does not support Horde and you haven't purchased Mega Horde then the chances of picking the other bonuses are increased. Below is a table of chances, for maps with and without horde.

For a more accurate calculation of the chances, depending on the Slayer's map and unlocked bonuses, use this calculator: https://specialmike.github.io/idle_slayer_calculator/

Name	Chances in Horde Map	Chances in Non-Horde Map
Found Coins	56.34%	62.39%
Frenzy	11.32%	12.33%
Equipment Bonus	1.38%	1.46%
OMG	0.31%	0.37%
Coin Value	1.80%	1.92%
Dual Randomness	3.60%	3.97%
Gemstone Rush	4.32%	4.76%
CpS Multiplier	7.43%	8.08%
Horde	9.23%	0.00%
Increase Souls	4.27%	4.72%