diff --git a/worlds/rogue_legacy/__init__.py b/worlds/rogue_legacy/__init__.py
index ad97325f708a..e57efe3c6b77 100644
--- a/worlds/rogue_legacy/__init__.py
+++ b/worlds/rogue_legacy/__init__.py
@@ -44,9 +44,11 @@ class RogueLegacyWorld(World):
     web = RogueLegacyWebWorld()
 
     boss_order: list[str]
+    piece_requirement: int
 
     def generate_early(self) -> None:
         self.boss_order = self.options.boss_shuffle.generate_boss_order(self)
+        self.piece_requirement = self.options.fountain_hunt.generate_requirement(self)
 
     def fill_slot_data(self) -> dict[str, Any]:
         # In theory, I could use self.options.as_dict, but I want more control over the value types.
@@ -54,38 +56,36 @@ def fill_slot_data(self) -> dict[str, Any]:
             # fmt: off
 
             # Easy flag to check for updates.
-            "world_version": WORLD_VERSION,
+            "world_version":             WORLD_VERSION,
 
             # Game options relevant to client.
-            "children": self.options.children.value,
-            "level_limit": bool(self.options.level_limit.value),
-            "shuffle_blacksmith": bool(self.options.shuffle_blacksmith.value),
-            "shuffle_enchantress": bool(self.options.shuffle_enchantress.value),
-            "chests_brown": self.options.chests_brown.value,
-            "chests_silver": self.options.chests_silver.value,
-            "chests_gold": self.options.chests_gold.value,
-            "chests_fairy": self.options.chests_fairy.value,
-            "diary_entries": self.options.diary_entries.value,
-            "neo_bosses": self.options.neo_bosses.current_key,
-            "additional_challenges": bool(self.options.additional_challenges.value),
-            "enemy_scaling": self.options.enemy_scaling.value / 100.0,
-            "castle_scaling": self.options.castle_scaling.value / 100.0,
-            "ngplus_requirement": self.options.ngplus_requirement.value,
-            "gold_gain": self.options.gold_gain.value / 100.0,
-            "charon": bool(self.options.charon.value),
-            "fountain_hunt": bool(self.options.fountain_hunt.value),
-            "fountain_pieces_available": self.options.fountain_pieces_available.value,
-            "fountain_pieces_required": self.options.fountain_pieces_required.value / 100.0,
-            "character_names_sir": self.options.character_names_sir.value,
-            "character_names_lady": self.options.character_names_lady.value,
-            "max_health": self.options.max_health.value,
-            "max_mana": self.options.max_mana.value,
-            "max_attack": self.options.max_attack.value,
-            "max_magic_damage": self.options.max_magic_damage.value,
-            "death_link": self.options.death_link.current_key,
+            "children":                  self.options.children.value,
+            "level_limit":               bool(self.options.level_limit.value),
+            "shuffle_blacksmith":        bool(self.options.shuffle_blacksmith.value),
+            "shuffle_enchantress":       bool(self.options.shuffle_enchantress.value),
+            "chests_brown":              self.options.chests_brown.value,
+            "chests_silver":             self.options.chests_silver.value,
+            "chests_gold":               self.options.chests_gold.value,
+            "chests_fairy":              self.options.chests_fairy.value,
+            "diary_entries":             self.options.diary_entries.value,
+            "neo_bosses":                self.options.neo_bosses.current_key,
+            "additional_challenges":     bool(self.options.additional_challenges.value),
+            "enemy_scaling":             self.options.enemy_scaling.value / 100.0,
+            "castle_scaling":            self.options.castle_scaling.value / 100.0,
+            "ngplus_requirement":        self.options.ngplus_requirement.value,
+            "gold_gain":                 self.options.gold_gain.value / 100.0,
+            "charon":                    bool(self.options.charon.value),
+            "character_names_sir":       self.options.character_names_sir.value,
+            "character_names_lady":      self.options.character_names_lady.value,
+            "max_health":                self.options.max_health.value,
+            "max_mana":                  self.options.max_mana.value,
+            "max_attack":                self.options.max_attack.value,
+            "max_magic_damage":          self.options.max_magic_damage.value,
+            "death_link":                self.options.death_link.current_key,
 
             # Computed data.
-            "boss_order": self.boss_order,
+            "boss_order":                self.boss_order,
+            "fountain_pieces_required":  self.piece_requirement,
         }
 
         # fmt: on
diff --git a/worlds/rogue_legacy/options.py b/worlds/rogue_legacy/options.py
index e77af1dcbf02..bf3583ab238f 100644
--- a/worlds/rogue_legacy/options.py
+++ b/worlds/rogue_legacy/options.py
@@ -1,4 +1,5 @@
 from dataclasses import dataclass
+from math import floor
 from typing import TYPE_CHECKING
 
 from Options import (
@@ -346,6 +347,14 @@ class FountainHunt(Toggle):
 
     display_name = "Fountain Hunt"
 
+    def generate_requirement(self, world: RogueLegacyWorld) -> int:
+        if not self:  # If disabled
+            return 0
+
+        available = world.options.fountain_pieces_available.value
+        required_factor = world.options.fountain_pieces_required.value / 100.0
+        return min(1, floor(available * required_factor))
+
 
 class FountainPiecesAvailable(Range):
     """Determines the number of Fountain Pieces available, if Fountain Hunt is enabled."""