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diff --git a/mit/hangman/ps3_hangman.py b/mit/hangman/ps3_hangman.py
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+#!/usr/bin/python3
+
+# Hangman game
+#
+
+# -----------------------------------
+# Helper code
+# You don't need to understand this helper code,
+# but you will have to know how to use the functions
+# (so be sure to read the docstrings!)
+
+import random
+
+WORDLIST_FILENAME = "words.txt"
+
+def loadWords():
+    """
+    Returns a list of valid words. Words are strings of lowercase letters.
+    
+    Depending on the size of the word list, this function may
+    take a while to finish.
+    """
+    print("Loading word list from file...")
+    # inFile: file
+    inFile = open(WORDLIST_FILENAME, 'r')
+    # line: string
+    line = inFile.readline()
+    # wordlist: list of strings
+    wordlist = line.split()
+    print("  ", len(wordlist), "words loaded.")
+    return wordlist
+
+def chooseWord(wordlist):
+    """
+    wordlist (list): list of words (strings)
+
+    Returns a word from wordlist at random
+    """
+    return random.choice(wordlist)
+
+# end of helper code
+# -----------------------------------
+
+# Load the list of words into the variable wordlist
+# so that it can be accessed from anywhere in the program
+wordlist = loadWords()
+
+def isWordGuessed(secretWord, lettersGuessed):
+    '''
+    secretWord: string, the word the user is guessing
+    lettersGuessed: list, what letters have been guessed so far
+    returns: boolean, True if all the letters of secretWord are in lettersGuessed;
+      False otherwise
+    This function assumes variable lettersGuessed have no repeated letters
+    '''
+    num = len(secretWord)
+
+    for i in secretWord:
+        if i in lettersGuessed:
+            num -= 1
+
+    if num == 0:
+        return True
+    else:
+        return False
+
+
+
+def getGuessedWord(secretWord, lettersGuessed):
+    '''
+    secretWord: string, the word the user is guessing
+    lettersGuessed: list, what letters have been guessed so far
+    returns: string, comprised of letters and underscores that represents
+      what letters in secretWord have been guessed so far.
+    '''
+    word = ""
+
+    for i in secretWord:
+        if i in lettersGuessed:
+            word += i
+        else:
+            word += "_ "
+
+    return word
+
+
+
+def getAvailableLetters(lettersGuessed):
+    '''
+    lettersGuessed: list, what letters have been guessed so far
+    returns: string, comprised of letters that represents what letters have not
+      yet been guessed.
+    '''
+    alphabet = "abcdefghijklmnopqrstuvwxyz"
+    available = ""
+
+    for i in alphabet:
+        if i not in lettersGuessed:
+            available += i
+    return available
+
+def hangman(secretWord):
+    '''
+    secretWord: string, the secret word to guess.
+
+    Starts up an interactive game of Hangman.
+
+    * At the start of the game, let the user know how many 
+      letters the secretWord contains.
+
+    * Ask the user to supply one guess (i.e. letter) per round.
+
+    * The user should receive feedback immediately after each guess 
+      about whether their guess appears in the computers word.
+
+    * After each round, you should also display to the user the 
+      partially guessed word so far, as well as letters that the 
+      user has not yet guessed.
+
+    Follows the other limitations detailed in the problem write-up.
+    '''
+
+    # Number of guesses user still has
+    num_guesses = 8
+
+    # Tracks the letters already guessed by user
+    lettersGuessed = []
+
+
+    print("Welcome to the game, Hangman!")
+    print("I am thinking of a word that is " + str(len(secretWord)) + \
+          " letters long")
+
+    while True:
+
+        available = getAvailableLetters(lettersGuessed)
+
+        print("------------")
+        if isWordGuessed(secretWord, lettersGuessed):
+            print("Congratulations, you won!")
+            win = True
+            break
+        elif num_guesses == 0:
+            print("Sorry, you ran out of guesses. The word was: " + secretWord)
+            break
+
+        print("You have " + str(num_guesses) + " guesses left.")
+        print("Available letters: " + available)
+
+        guess = input("Please guess a letter: ")
+
+        if guess not in available:
+            print("Oops! You've already guessed that letter: " + \
+                  getGuessedWord(secretWord, lettersGuessed))
+            continue
+
+        lettersGuessed.append(guess)
+
+        if guess not in secretWord:
+            print("Oops! That letter is not in my word: " + \
+                  getGuessedWord(secretWord, lettersGuessed))
+            num_guesses -= 1
+            continue
+        else:
+            print("Good guess: " + getGuessedWord(secretWord, lettersGuessed))
+
+
+# When you've completed your hangman function, uncomment these two lines
+# and run this file to test! (hint: you might want to pick your own
+# secretWord while you're testing)
+
+# secretWord = chooseWord(wordlist).lower()
+secretWord = "swards"
+hangman(secretWord)