diff --git a/Options.py b/Options.py
index 3e3137322f..1087daf17f 100644
--- a/Options.py
+++ b/Options.py
@@ -688,6 +688,12 @@ class Range(NumericOption):
     range_start = 0
     range_end = 1
 
+    _RANDOM_OPTS = [
+        "random", "random-low", "random-middle", "random-high", 
+        "random-range-low-<min>-<max>", "random-range-middle-<min>-<max>",
+        "random-range-high-<min>-<max>", "random-range-<min>-<max>",
+    ]
+
     def __init__(self, value: int):
         if value < self.range_start:
             raise Exception(f"{value} is lower than minimum {self.range_start} for option {self.__class__.__name__}")
@@ -713,9 +719,26 @@ class Range(NumericOption):
             # these are the conditions where "true" and "false" make sense
             if text == "true":
                 return cls.from_any(cls.default)
-            else:  # "false"
-                return cls(0)
-        return cls(int(text))
+            # "false"
+            return cls(0)
+
+        try:
+            num = int(text)
+        except ValueError:
+            # text is not a number
+            # Handle conditionally acceptable values here rather than in the f-string
+            default = ""
+            truefalse = ""
+            if hasattr(cls, "default"):
+                default = ", default"
+                if cls.range_start == 0 and cls.default != 0:
+                    truefalse = ", \"true\", \"false\""
+            raise Exception(f"Invalid range value {text!r}. Acceptable values are: "
+                            f"<int>{default}, high, low{truefalse}, "
+                            f"{', '.join(cls._RANDOM_OPTS)}.")
+
+        return cls(num)
+
 
     @classmethod
     def weighted_range(cls, text) -> Range:
@@ -731,9 +754,7 @@ class Range(NumericOption):
             return cls(random.randint(cls.range_start, cls.range_end))
         else:
             raise Exception(f"random text \"{text}\" did not resolve to a recognized pattern. "
-                            f"Acceptable values are: random, random-high, random-middle, random-low, "
-                            f"random-range-low-<min>-<max>, random-range-middle-<min>-<max>, "
-                            f"random-range-high-<min>-<max>, or random-range-<min>-<max>.")
+                            f"Acceptable values are: {', '.join(cls._RANDOM_OPTS)}.")
 
     @classmethod
     def custom_range(cls, text) -> Range: