Guides
How packs, odds, fairness and the games actually work. Every figure on these pages is worked out from the live catalogue and the code that settles each bet, so it is always current.



What is a mystery pack?
What you pay for, how the item is picked, and what happens to what you win.
Read the guide


Mystery pack odds, explained
Read an odds table like the house does: average return, edge and the chance of winning back the price.
Read the guide
How to verify a provably fair open
Find your seeds, reveal the secret, and recompute any open in the browser or with five lines of code.
Read the guideCrypto deposits and withdrawals on KRUNA
16 coins to deposit, a dollar balance, fast withdrawals. Minimums, fees and the rules, in one place.
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How pack battles work
Open the same packs side by side. Four modes decide who takes the table.
Read the guide
$249.0013.2%6.43×
$1,600.00How the upgrader works
One roll at a more valuable item, with the chance set by a single formula.
Read the guide
PlinkoPlinko strategy: what rows and risk really change
Rows and risk change how wins are spread, not what you get back. The numbers for every board.
Read the guide
CrashCrash strategy: auto cash-out targets compared
Every cash-out target returns the same on average. The odds, the timing and the Martingale maths.
Read the guide
