diff --git a/core/src/com/trs/game/model/Model.java b/core/src/com/trs/game/model/Model.java
new file mode 100644
index 0000000..aa27233
--- /dev/null
+++ b/core/src/com/trs/game/model/Model.java
@@ -0,0 +1,4 @@
+package com.trs.game.model;
+
+public class Model {
+}
diff --git a/core/src/com/trs/game/model/Monster.java b/core/src/com/trs/game/model/Monster.java
new file mode 100644
index 0000000..3fa806c
--- /dev/null
+++ b/core/src/com/trs/game/model/Monster.java
@@ -0,0 +1,4 @@
+package com.trs.game.model;
+
+public class Monster {
+}
diff --git a/core/src/com/trs/game/view/Screen.java b/core/src/com/trs/game/view/Screen.java
new file mode 100644
index 0000000..6aaa91e
--- /dev/null
+++ b/core/src/com/trs/game/view/Screen.java
@@ -0,0 +1,4 @@
+package com.trs.game.view;
+
+public interface Screen {
+}
diff --git a/core/src/com/trs/game/view/View.java b/core/src/com/trs/game/view/View.java
new file mode 100644
index 0000000..1e46c72
--- /dev/null
+++ b/core/src/com/trs/game/view/View.java
@@ -0,0 +1,4 @@
+package com.trs.game.view;
+
+public class View {
+}