Artifact award chances and selection

Paragon and ML minor artifacts#

The shared helper first caps creature fame at 32,000. Let F be that fame and L the credited player’s effective Luck. Define A = max(10, 100 × (0.83 − round(log10(round(F / 6000, 3) + 0.001), 3))). The award probability is 1 / (A × (100 − sqrt(L)) / 100). The result is compared directly with a uniform random value from 0 up to, but excluding, 1.

The Mondain’s Legacy helper delegates to the same chance formula. Eligibility and choice of reward branch are separate: the ML flag or actual paragon state must select that path. Each pool then chooses a random item from its own candidate list.

These source formulas are not a guarantee that a particular creature is spawned or that every contributor receives an independent roll. Effective Luck, the credited player and the shared killed-by rules matter.

Doom artifact award roll#

Let C be LootPack’s luck-chance integer for the highest-damage contributor who has looting rights. The helper derives C = trunc(luck^(1 / 1.8) × 100), including the applicable Honor perfection bonus; negative luck returns zero. The old 1,200 Luck clamp is disabled in the configured SE-or-later branch.

For DemonKnight (the Dark Father), the award threshold is 1500 + trunc(C / 5). Other bosses using this helper use 750 + trunc(C / 10). The threshold is compared with a random integer from 0 to 99,999, so divide it by 100,000 for the probability. At zero Luck these are 1.5% and 0.75% respectively.

The DemonKnight death hook also requires the creature not to be summoned and not to have NoKillAwards. Other boss call sites retain their own conditions. After a successful roll, one recipient is selected randomly from contributors with looting rights; it is not automatically the player whose Luck supplied C.

Doom item selection#

The current shared pool contains two rarity-10 entries with weight 5 each and 31 rarity-11 entries with weight 4 each, for total weight 134. After the artifact award succeeds, each rarity-10 candidate therefore has selection probability 5 / 134 and each rarity-11 candidate 4 / 134. These are conditional item-selection odds, not per-kill drop rates.

The artifact is placed in the recipient’s backpack when possible, otherwise their bank box. The creature reference pages list the applicable candidate pools and item links.

Related references#

• Shared artifact reward pools
• Ordinary loot budgets
• Creature catalogue