diff --git a/main.py b/main.py
new file mode 100644
index 0000000..cece5ce
--- /dev/null
+++ b/main.py
@@ -0,0 +1,143 @@
+# Pystermind 1.0
+# By Wholesomedonut
+
+# Read below for how-to-play, or input ? after running
+
+import random
+
+""" Dummy class for Errors"""
+class Error(Exception):
+    pass
+
+""" Length of user input > or < 4 """
+class LengthException(Error):
+    pass
+
+""" Reports incorrect guess content """
+class ColorException(Error):
+    pass
+
+
+secret = [] 
+guess = []
+clue = []
+game_continue = True
+
+debug = False # Turn this flag on for easy debug prints, if that's your jam.
+
+colors = ['r', 'b', 'g', 'y'] # Can easily be something else.
+# Doesn't have to be 4 things, doesn't have to be colors.
+
+rules = """
+Input a string of 4 letters, representing colors.
+r = red
+b = blue
+g = green
+y = yellow
+
+You will receive output from your guess that will tell you what you got right
+and what you got wrong.
+
+* = correct color in correct location
+~ = correct color and wrong location
+# = incorrect color in incorrect location
+"""
+
+
+def generateSecret(secret):
+    for i in range(0, len(colors)):
+        secret.append(random.choice(colors))
+
+    if debug:
+        print(secret)
+
+    return secret
+
+
+def checkGuess(guess):
+    if len(guess) > len(colors):
+        raise LengthException("Your guess is too long.")
+    elif len(guess) < len(colors):
+        raise LengthException("Your guess is too short.")
+
+    for i in guess:
+        print('i:', i)
+        if i not in colors:
+            raise ColorException("You are not guessing from r, g, b, or y.")
+
+
+def compare(secret, guess, clue):
+    clue = []
+    for i in range(0, len(secret)):
+        if guess[i] == secret[i]:
+            clue.append('*')
+        elif guess[i] in secret:
+            clue.append('~')
+        else:
+            clue.append('#')
+
+    if debug:
+        out = ('Your guess: %s,\nthe secret: %s') % (guess, secret)
+        print(out)
+
+    return clue
+
+
+def calc(secret, guess, clue):
+    tmp = ''
+    if tmp.join(clue) == '****':
+        print('You won!')
+    else:
+        print('Not quite right.')
+        print('Your clue:', clue)
+
+
+generateSecret(secret)
+print(rules)
+
+while game_continue:
+    guess = []
+
+    temp = input('Choose your colors. Input \'?\' for help: ')
+    if debug:
+        print('Temp =', temp)
+    guess = list(temp)
+    if debug:
+        print('Guess =', guess)
+    if debug:
+        print('Secret = ', secret)
+    temp = ''
+
+    if '?' in guess and len(guess) == 1:
+        print(rules)
+        guess = ''
+        continue
+    elif 'q' in guess and len(guess) == 1:
+        print('Bye!')
+        game_continue = False
+        break
+        
+    # Will obviously continue if you don't quit.
+
+    try:
+        if game_continue:
+            checkGuess(guess)
+            clue = compare(secret, guess, clue)
+            # Finds differences between guess and secret
+            calc(secret, guess, clue)
+            # Calculates if you won or not and outputs it.
+
+    except LengthException as e:
+        print('Error:', e)
+
+    except ColorException as e:
+        print('Error:', e)
+
+    cont = input('Try again? y/n: ')
+    if cont == 'y': # Regenerates secret and clears variables.
+        generateSecret(secret)
+        guess = []
+    elif cont == 'n':
+        game_continue = False
+        print('Bye!')
+        break