diff --git a/README.md b/README.md
index 6af5cc6..00b9e5c 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
-# stable-diffusion-webui-wildcards
-Wildcards
+# Wildcards
+An extension version of a script from https://github.com/jtkelm2/stable-diffusion-webui-1/blob/main/scripts/wildcards.py
+
+Allows you to use `__name__` syntax in your prompt to get a random line from a file named `name.txt` in the wildcards directory.
diff --git a/scripts/wildcards.py b/scripts/wildcards.py
new file mode 100644
index 0000000..1ca83d4
--- /dev/null
+++ b/scripts/wildcards.py
@@ -0,0 +1,33 @@
+import os
+import random
+
+from modules import scripts
+
+
+class WildcardsScript(scripts.Script):
+    def title(self):
+        return "Simple wildcards"
+
+    def show(self, is_img2img):
+        return scripts.AlwaysVisible
+
+    def replace_wildcard(self, text):
+        if " " in text:
+            return text
+
+        replacement_file = os.path.join(scripts.basedir(), f"wildcards/{text}.txt")
+        if os.path.exists(replacement_file):
+            with open(replacement_file, encoding="utf8") as f:
+                return random.choice(f.read().splitlines())
+
+        return text
+
+    def process(self, p):
+        p.extra_generation_params["Wildcard prompt"] = p.all_prompts[0]
+
+        for i in range(len(p.all_prompts)):
+            random.seed(p.all_seeds[i])
+
+            prompt = p.all_prompts[i]
+            prompt = "".join(self.replace_wildcard(chunk) for chunk in prompt.split("__"))
+            p.all_prompts[i] = prompt
diff --git a/wildcards/put wildcards here.txt b/wildcards/put wildcards here.txt
new file mode 100644
index 0000000..e69de29