Wet, heavy, and everywhere after the rain. The Cross's least glamorous export.
Ore stats
Crucible multiplier
0.72x
NPC sell price
$5
per ore
Rarity
uncommon
D tier
Found in
Stonewake's Cross
Source type
mined
Trait
None
multiplier filler
Where Mudstone comes from
Source
World
Chance
Boulder
Stonewake's Cross
8.0% (8.0%)
Mushroom Cluster
Stonewake's Cross
12.8% (12.8%)
Forge odds for Oversized Letter Opener
P(Colossal Sword class) P(Oversized Letter Opener) ▏RNG-lock
Per-forge odds at the Stonewake's Cross anvil without RNG lock. At 50+ ores with RNG Lock on, the class roll is guaranteed and Oversized Letter Opener sits at 35.7% of the variant roll.
Best Oversized Letter Opener recipes at the Mudstone stage
Mudstone has no trait — its job is pure multiplier filler. It ranks #19 of 31 non-trait ores in the w1 pool, so the solver reaches for it whenever raw 0.72x beats trait coverage.
👑 God-Roll BiS
Poopite×15
Gearsteel×35
Total ores
50
Multiplier
2.04x
Target chance
35.7% · ~1 in 3
Est. DPS
24
Trait coverage: Poopite 30%OPTIMAL
Highest score: 24.5 DPS on Oversized Letter Opener at 35.7% per forge — the no-compromise endgame recipe.
Mudstone carries a 0.72x crucible multiplier — D tier, uncommon rarity — sourced from Stonewake's Cross. A crucible loaded entirely with Mudstone forges at exactly 0.72x.
Is Mudstone a trait ore in The Forge?+
No — Mudstone is a pure multiplier ore. Among non-trait filler ores in its pool it ranks #19 of 31 by multiplier, so it earns crucible slots on raw 0.72x power alone.
Where does Mudstone drop in The Forge?+
Boulder (Stonewake's Cross) at 8.0%; Mushroom Cluster (Stonewake's Cross) at 12.8%.
Is Mudstone good for forging?+
Mudstone is early-game filler: 0.72x multiplier is low, so swap it out once better ores from Stonewake's Cross or beyond are unlocked.