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Weapon ranks: XP, fast levelling and Telia's Replicator

  • Updated
  • Game version 1.0.6

A gun gains XP from the damage you deal with it and ranks up from 0 to 5; each rank opens one enchantment slot. Rank 5 takes 3,224 XP in total. Since 1.0, a kill’s XP is split equally between the guns that hurt the enemy, guns already at rank 5 get none, and kills with melee or throwables give their XP to your currently selected gun.

Lock of the Magus, a blond lock of hair tied with a ribbon.
Lock of the Magus multiplies the XP of your next kill by 100. Game sprite from the SULFUR Wiki.

XP per rank

Rank XP from the previous rank Slots
1 50 1
2 125 2
3 313 3
4 782 4
5 1,954 5

Rank alone does not change a gun’s stats; the slots do. XP per kill is listed for every enemy in the enemy list. Most early enemies give under 10; Cousin gives 30, Lucia 60, Terrorbaum 80 and Desert Claus 130.

Who gets the XP in 1.0

  • Damage you deal with a gun earns it credit. Damage from explosions you did not cause, or from enemies hurting each other, earns nothing.
  • When the enemy dies, its XP is split equally between the eligible guns you used on it.
  • Guns at rank 5 are excluded from the split, so they no longer soak up XP meant for a new gun.
  • A kill made only with melee or throwables gives its XP to the gun you last selected. This makes the Wakizashi a way to level a gun without spending its durability or ammo.

Levelling a gun quickly

  1. Run the Caves. Enemies are packed close together. Players report reaching rank 3 or 4 in one Caves run with a fresh gun, and rank 5 on the second.
  2. Equip Library Cards. Each passive Library Card gives +30% gun XP, and several stack with each other.
  3. Save a Lock of the Magus for a boss. It multiplies the next kill’s XP by 100 and is then used up. Cousin’s 30 XP becomes 3,000, which takes a rank 2 or 3 gun to rank 5 at once. Equip it only after Cousin’s two add waves, or a goblin kill will consume it. Since 1.0 it is not consumed if no gun can receive the XP.
  4. Melee the small fry with the gun you want to level selected.

Telia’s Replicator

Telia, in the blast crater at the back left of the Church, takes a rank 5 gun permanently and in exchange lets you buy fresh copies of that model whenever you like.

  • The gun must be rank 5 and sitting in your inventory, not equipped.
  • She destroys its oils, scroll and attachments. Remove attachments at Ralphie’s Workbench first.
  • Insurance does not protect a sacrificed gun.
  • A copy costs twice the gun’s base price, plus 20% after each purchase. Arthur resets the increase for 5 Stamps. A Snut .38 copy costs 1,000, then 1,200, then 1,440.
  • Copies start at rank 0 with no attachments.

Each gun has its own “Pity for the …” achievement for sacrificing it, 58 in total; they make up most of the achievement list.

Sources

  1. SULFUR Wiki: Experience and GameplayXP per rank, credit rules, drawn-weapon rules (pre-1.0 page).
  2. Steam discussion: Leveling to rank 5 takes cruelly long (October 2026)3,224 XP in total; XP per enemy and per boss; Library Card and Lock of the Magus routes.
  3. Steam discussion: Stacking effects, Library Cards and Lock of the Magus (27 October 2026)Library Cards stack with each other and with the Lock.
  4. SULFUR 1.0 release notes (Steam, 28 October 2026)XP split equally, max-rank guns excluded, melee and throwable kills credit the selected gun, Lock not consumed if no XP can be given.
  5. SULFUR Wiki: TeliaReplicator price: twice the base price, +20% per use.
  6. Steam discussion: How to sacrifice a weapon? (1 November 2026)Gun must be rank 5 and in the inventory, not equipped; attachments are destroyed.

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