diff --git a/main.lua b/main.lua
index ee0b0b6..c9acb4f 100644
--- a/main.lua
+++ b/main.lua
@@ -1,13 +1,17 @@
+-- libraries --
 Object = require 'lib/classic/classic'
 
-function love.load()
+-- objects --
+Circle = require 'obj/Circle'
 
+function love.load()
+    circle = Circle(400, 300, 50)
 end
 
 function love.update(dt)
-
+    circle:update(dt)
 end
 
 function love.draw()
-
+    circle:draw()
 end
diff --git a/obj/Circle.lua b/obj/Circle.lua
new file mode 100644
index 0000000..f47c29d
--- /dev/null
+++ b/obj/Circle.lua
@@ -0,0 +1,16 @@
+local Circle = Object:extend()
+
+function Circle:new(x, y, radius, mode)
+    self.x = x or 400
+    self.y = y or 300
+    self.radius = radius or 50
+    self.mode = mode or "fill"
+end
+
+function Circle:update(dt) end
+
+function Circle:draw()
+    love.graphics.circle(self.mode, self.x, self.y, self.radius)
+end
+
+return Circle