diff --git a/helloworld/main.pony b/helloworld/main.pony
new file mode 100644
index 0000000..7466e4e
--- /dev/null
+++ b/helloworld/main.pony
@@ -0,0 +1,36 @@
+actor Main
+    new create(env: Env) =>
+        env.out.print("Hello, world!")
+        let defaultWombat = Wombat("Fantastibat")
+        let hungryWombat = Wombat.hungry("Nomsbat", 12)
+
+class Wombat
+    let name: String
+    var _hunger_level: U64
+    var _thirst_level: U64 = 1
+
+    new create(name': String) =>
+        name = name'
+        _hunger_level = 0
+
+    new hungry(name': String, hunger': U64) =>
+        name = name'
+        _hunger_level = hunger'
+
+    fun hunger(): U64 => _hunger_level
+
+    fun ref set_hunger(to: U64 = 0): U64 => _hunger_level = to
+
+class Hawk
+    var _hunger_level: U64 = 0
+
+class Owl
+    var _hunger_level: U64
+
+    new create() =>
+        _hunger_level = 42
+
+class Forest
+    let _owl: Owl = Owl
+    let _hawk: Hawk = Hawk
+