diff --git a/src/constants.py b/src/constants.py
index fe305da..07b4746 100644
--- a/src/constants.py
+++ b/src/constants.py
@@ -1,5 +1,6 @@
 from modules.wires import WiresModule
 from modules.button import ButtonModule
+from modules.simon import SimonModule
 from modules.comp_wires import ComplicatedWiresModule
 from modules.password import PasswordModule
 
@@ -7,7 +8,7 @@ modules = {
     'wires': WiresModule,
     'button': ButtonModule,
     'keypad': None,
-    'simon': None,
+    'simon': SimonModule,
     'first': None,
     'memory': None,
     'morse': None,
diff --git a/src/modules/simon.py b/src/modules/simon.py
new file mode 100644
index 0000000..75f9232
--- /dev/null
+++ b/src/modules/simon.py
@@ -0,0 +1,74 @@
+from prompt_toolkit import prompt
+from prompt_toolkit.completion import WordCompleter
+
+class SimonModule:
+    buttonmapping = {
+        "vowel": {
+            0: {
+                "red": "blue",
+                "blue": "red",
+                "green": "yellow",
+                "yellow": "green",
+            },
+            1: {
+                "red": "yellow",
+                "blue": "green",
+                "green": "blue",
+                "yellow": "red",
+            },
+            2: {
+                "red": "green",
+                "blue": "red",
+                "green": "yellow",
+                "yellow": "blue",
+            },
+        },
+        "novowel": {
+            0: {
+                "red": "blue",
+                "blue": "yellow",
+                "green": "green",
+                "yellow": "red",
+            },
+            1: {
+                "red": "red",
+                "blue": "blue",
+                "green": "yellow",
+                "yellow": "green",
+            },
+            2: {
+                "red": "yellow",
+                "blue": "green",
+                "green": "blue",
+                "yellow": "red",
+            },
+        },
+    }
+
+    def __init__(self, strikes, isvowel):
+        self.strikes = strikes
+        self.isvowel = isvowel
+        self.isvowel = "vowel" if isvowel else "novowel"
+
+    def convert(self, color):
+        return self.buttonmapping[self.isvowel][self.strikes][color]
+
+    @classmethod
+    def interactive(cls, state, cmdline):
+        try:
+            obj = cls(state.strikes, state.serial.vowel)
+        except AttributeError:
+            print("you need to specify a serial number before running this.")
+            return
+
+        while True:
+            print("enter information")
+            user_in = prompt("simon> ")
+            if user_in == "strike":
+                state.strikes += 1
+                obj.strikes += 1
+            elif user_in == "quit":
+                break
+            else:
+                for i in user_in.split(" "):
+                    print(obj.convert(i))