diff --git a/README.md b/README.md
index 90a808b..bc40c57 100644
--- a/README.md
+++ b/README.md
@@ -38,3 +38,4 @@ Reference Links:-
 - Project 10 - Binary to Decimal Converter
 - Project 11 - BMI Calculator
 - Project 12 - Image to PDF Converter
+- Project 13 - Tic Tac Toe
diff --git a/Tic_Tac_Toe_game/Tic_Tac_Toe_game.py b/Tic_Tac_Toe_game/Tic_Tac_Toe_game.py
new file mode 100644
index 0000000..c8ba159
--- /dev/null
+++ b/Tic_Tac_Toe_game/Tic_Tac_Toe_game.py
@@ -0,0 +1,178 @@
+#Tic Tac Toe game using tkinter
+
+#Importing modules
+from tkinter import *
+import tkinter.messagebox
+
+#Window defined
+root = Tk()
+
+root.iconbitmap('tic-tac-toe.ico')
+
+root.title('Tic-Tac-Toe')
+
+root.resizable(False,False)
+
+click = True
+
+#Count variable to check the no. of turns
+count = 0
+
+btn1 = StringVar()
+btn2 = StringVar()
+btn3 = StringVar()
+btn4 = StringVar()
+btn5 = StringVar()
+btn6 = StringVar()
+btn7 = StringVar()
+btn8 = StringVar()
+btn9 = StringVar()
+
+xPhoto = PhotoImage(file = 'cross.png')
+oPhoto = PhotoImage(file = 'happy.png')
+
+#Grid buttons
+def start():
+    button1 = Button(root,height=9,width=19,bd=.5,relief = 'sunken',bg = '#ccfff7',textvariable = btn1,
+                     command=lambda: press(1,0,0)) 
+    button1.grid(row=0,column=0)
+
+    button2 = Button(root,height=9,width=19,bd = .5,relief = 'sunken',bg = '#ccfff7',textvariable = btn2,
+                     command=lambda: press(2,0,1))
+    button2.grid(row=0,column=1)
+
+    button3 = Button(root,height=9,width=19,bd = .5,relief = 'sunken',bg = '#ccfff7',textvariable = btn3,
+                     command=lambda: press(3,0,2))
+    button3.grid(row=0,column=2)
+
+    button4 = Button(root,height=9,width=19,bd = .5,relief = 'sunken',bg = '#99ffee',textvariable = btn4,
+                     command=lambda: press(4,1,0))
+    button4.grid(row=1,column=0)
+
+    button5 = Button(root,height=9,width=19,bd = .5,relief = 'sunken',bg = '#99ffee',textvariable = btn5,
+                     command=lambda: press(5,1,1))
+    button5.grid(row=1,column=1)
+
+    button6 = Button(root,height=9,width=19,bd = .5,relief = 'sunken',bg = '#99ffee',textvariable = btn6,
+                     command=lambda: press(6,1,2))
+    button6.grid(row=1,column=2)
+
+    button7 = Button(root,height=9,width=19,bd = .5,relief = 'sunken',bg = '#66ffe6',textvariable = btn7,
+                     command=lambda: press(7,2,0))
+    button7.grid(row=2,column=0)
+
+    button8 = Button(root,height=9,width=19,bd = .5,relief = 'sunken',bg = '#66ffe6',textvariable = btn8,
+                     command=lambda: press(8,2,1))
+    button8.grid(row=2,column=1)
+
+    button9 = Button(root,height=9,width=19,bd = .5,relief = 'sunken',bg = '#66ffe6',textvariable = btn9,
+                     command=lambda: press(9,2,2))
+    button9.grid(row=2,column=2)
+
+#Changing the value of button
+def press(num,r,c):
+    global click,count
+    if click == True:
+        labelPhoto = Label(root,image = xPhoto)
+        labelPhoto.grid(row=r,column=c)
+        if num == 1:
+            btn1.set('X')
+        elif num == 2:
+            btn2.set('X')
+        elif num == 3:
+            btn3.set('X')
+        elif num == 4:
+            btn4.set('X')
+        elif num == 5:
+            btn5.set('X')
+        elif num == 6:
+            btn6.set('X')
+        elif num == 7:
+            btn7.set('X')
+        elif num == 8:
+            btn8.set('X')
+        else:
+            btn9.set('X')
+        count += 1
+        click = False
+        checkWin()
+        
+    else:
+        labelPhoto = Label(root,image = oPhoto)
+        labelPhoto.grid(row=r,column=c)
+        if num == 1:
+            btn1.set('O')
+        elif num == 2:
+            btn2.set('O')
+        elif num == 3:
+            btn3.set('O')
+        elif num == 4:
+            btn4.set('O')
+        elif num == 5:
+            btn5.set('O')
+        elif num == 6:
+            btn6.set('O')
+        elif num == 7:
+            btn7.set('O')
+        elif num == 8:
+            btn8.set('O')
+        else:
+            btn9.set('O')
+        count += 1
+        click = True
+        checkWin()
+ 
+#Checks the winner      
+    
+def checkWin():
+    global count,click
+    
+    if (btn1.get() == 'X' and btn2.get() == 'X' and btn3.get() == 'X' or
+        btn4.get() == 'X' and btn5.get() == 'X' and btn6.get() == 'X' or
+        btn7.get() == 'X' and btn8.get() == 'X' and btn9.get() == 'X' or
+        btn1.get() == 'X' and btn4.get() == 'X' and btn7.get() == 'X' or
+        btn2.get() == 'X' and btn5.get() == 'X' and btn8.get() == 'X' or
+        btn3.get() == 'X' and btn6.get() == 'X' and btn9.get() == 'X' or
+        btn1.get() == 'X' and btn5.get() == 'X' and btn9.get() == 'X' or
+        btn3.get() == 'X' and btn5.get() == 'X' and btn7.get() == 'X'):
+        tkinter.messagebox.showinfo("Tic-Tac-Toe", 'X Wins !')
+        click = True
+        count = 0
+        clear()
+        start()
+        
+    elif (btn1.get() == 'O' and btn2.get() == 'O' and btn3.get() == 'O' or
+          btn4.get() == 'O' and btn5.get() == 'O' and btn6.get() == 'O' or
+          btn7.get() == 'O' and btn8.get() == 'O' and btn9.get() == 'O' or
+          btn1.get() == 'O' and btn4.get() == 'O' and btn7.get() == 'O' or
+          btn2.get() == 'O' and btn5.get() == 'O' and btn8.get() == 'O' or
+          btn3.get() == 'O' and btn6.get() == 'O' and btn9.get() == 'O' or
+          btn1.get() == 'O' and btn5.get() == 'O' and btn9.get() == 'O' or
+          btn3.get() == 'O' and btn5.get() == 'O' and btn7.get() == 'O'):
+          tkinter.messagebox.showinfo("Tic-Tac-Toe", 'O Wins !')
+          count = 0
+          clear()
+          start()
+          
+    elif (count == 9):
+         tkinter.messagebox.showinfo("Tic-Tac-Toe", 'Tie Game!')
+         click = True
+         count = 0
+         clear()
+         start()
+
+#Clear the tiles
+def clear():
+    btn1.set('')
+    btn2.set('')
+    btn3.set('')
+    btn4.set('')
+    btn5.set('')
+    btn6.set('')
+    btn7.set('')
+    btn8.set('')
+    btn9.set('')
+
+start()
+
+root.mainloop()