Pack Odds Calculator
Luck counts in doublings, capped at 12. Past x1,638 luck this pack's odds stop moving, and no rarity's weight grows more than x5.
- Average opening earns
$22.47k/s- 10 openings earn
- $224.7k/s
- Pack grows in
- 7m
- Hakashi in 10
- 14.4%
Income at 1x size with no mutation, grade or trait; those multiply every unit the same way, see the income calculator.
- Hakashi1.54% per opening (1 in 65)50%: 45 opens, 90%: 149, base $28.88k/s14.4%in 10
- Sesuko2.06% per opening (1 in 49)50%: 34 opens, 90%: 111, base $19.25k/s18.8%in 10
- Byakoya3.6% per opening (1 in 28)50%: 19 opens, 90%: 63, base $13.13k/s30.7%in 10
- Mikima3.84% per opening (1 in 26)50%: 18 opens, 90%: 59, base $110k/s32.4%in 10
- Gaaro4.31% per opening (1 in 23)50%: 16 opens, 90%: 53, base $6.75k/s35.6%in 10
- Noruto4.79% per opening (1 in 21)50%: 15 opens, 90%: 47, base $4.39k/s38.8%in 10
- Misury6.7% per opening (1 in 15)50%: 10 opens, 90%: 34, base $2.7k/s50%in 10
- RockLay9.22% per opening (1 in 11)50%: 8 opens, 90%: 24, base $1.38k/s62%in 10
- Gilgamesh9.36% per opening (1 in 11)50%: 8 opens, 90%: 24, base $170k/s62.6%in 10
- Junwoo (Weak)12% per opening (1 in 8)50%: 6 opens, 90%: 19, base $805/s72.1%in 10
- Miky17.7% per opening (1 in 6)50%: 4 opens, 90%: 12, base $350/s85.8%in 10
- Sakura24.8% per opening (1 in 4)50%: 3 opens, 90%: 9, base $175/s94.2%in 10
Where the odds come from
The calculator runs the game's own pack roll (GetSharedCharacterWeights): every unit of the pack's domain at its roll chance, the pack's own unit featured, high packs tilted toward rare units with minimum shares, then your luck added in doublings. We checked it against the game code run offline for all 120 packs at x1, x2, x10 and x100 luck, and all 480 cases match. How often each pack spawns in a domain is on the packs page.
Opening luck is your luck multiplier when a pack opens. It comes from the x2 and x4 Luck passes (the shop caps passes at x8), the Luck Potion (x2 for ten minutes), the Hatch Luck machine on your plot (+1 per level) and server luck. Enter your total; the presets cover the pass combinations.
Questions
Does a unit's own pack give it more often?
Only for the rarer units. A pack sets aside a fixed share for its own unit (3% for a Common pack, 7% for a Legendary one) and halves its normal chance. Gilgamesh comes out of its own pack 9.36% of the time against 2.24% from Sakura's Pack, but Sakura is less likely from Sakura's Pack (19.2%) than from Gilgamesh's (24.8%).
How much does luck help?
Luck counts in doublings: x2 is one, x4 two, x8 three. Each doubling adds a share of weight to the rarer units, more the rarer they are. At x100 luck Gilgamesh goes from 2.24% to 3.91% in Sakura's Pack, and Commons don't gain at all.
Is there a luck cap?
Yes. Doublings stop at 12, which is x4,096 counting the pack's own luck (a Legendary pack already has x2.5, so x1,638 of yours reaches the cap). No rarity's weight grows more than x5, however much luck you stack.
Why do Cosmic and rarer packs give their unit so often?
High packs guarantee minimum shares: a Cosmic pack gives Cosmic units at least 30% of the time, so King Of Pirates's Pack gives King Of Pirates 30% of openings. Eternal and Primordial packs also never give anything below Cosmic.
Does luck change the Shibuya Pack?
No. The Shibuya Pack in the shop is a Robux roll on fixed chances (True Gambler 69.8% down to Demon King Heian 0.2%), so the calculator shows those chances whatever luck you enter.
