Boom Spud

#Overview

Boom Spud is a Rare item that gives killed enemies a chance to explode. Each copy adds 0.12 to the explode-on-kill stat. The stat goes through the game's diminishing-returns curve x / (1 + x) (Stats), so one copy gives a 10.7% chance, two give 19.4% and three give 26.5%.

The explosion deals a flat 20 damage, multiplied by Tibo's damage stat, to every enemy within 22 units of the corpse. It works on pests and elites but not on bosses.^[1]

Boom Spud has weight 6 out of 53 among Rare items, about 1.1% of item rolls at luck 0. With Rotten Spud at level 5, the next chest turns it into Kaboom Spud.

#How it works

• Measured (build 41 main-B2gf34bA.js, headless tools/play.mjs, seed wiki, standard mode, normal difficulty; copies added with giveItem): the game's explodeOnKillChance stat read 0.1071, 0.1935 and 0.2647 for 1 to 3 copies.
• The explosion radius is fixed at 22 units. Unlike most item blasts it does not grow with area.
• The damage scales only with the damage (might) stat. It does not grow with enemy HP or with run time.
• An enemy killed by an explosion dies like any other enemy, so it can roll its own explosion. This explosion is a plain stat roll with no per-second limit, unlike the procs of Kaboom Spud.
• Explosion hits are not weapon hits, so they do not trigger on-hit items such as Coal-Baked Spud or Heavy Russet. They can still crit.

#Tips

• 20 damage is enough to finish most early pests, but pest HP grows over the run (about 3.4× by 20:00 on Normal, see Enemy scaling). Treat Boom Spud as a way to clear crowds early and as a step towards Kaboom Spud.
• Holding Boom Spud makes Rotten Spud four times as likely in level-up offers (Level-up). If you plan to evolve it, accept the curse that comes with it.

#Stat changes

#Obtaining

• Items come from points of interest such as the Fry Cart vendor, Potato Crates, the Microwave and Tater Slots, and from loot runners (Golden Scarab, Lost Saucer). Ordinary chests never give a new item; they can only evolve one you already hold. Rarity weights: Common 59, Uncommon 25, Rare 10, Epic 4, Legendary 2.

#Names in other languages

Verified: the name the game shows when another language is selected in Settings, from its translation files.^[2] See Languages.

#Data

{
  "id": "boom-spud",
  "tier": "base",
  "rarity": 2,
  "mods": {
    "explodeOnKill": 0.12
  },
  "weight": 6
}