diff --git a/include/akgl/stage.h b/include/akgl/stage.h
new file mode 100644
index 0000000..e5d8c19
--- /dev/null
+++ b/include/akgl/stage.h
@@ -0,0 +1,14 @@
+#ifndef _STAGE_H_
+#define _STAGE_H_
+
+// Stages are collections of lights and cameras in a 2D or 3D space wherein actors
+// and backgrounds are placed and directed for action.
+typedef struct akgl_Stage {
+    aksl_TreeNode bsp;
+    akerr_ErrorContext AKERR_NOIGNORE *(*partition)(struct akgl_Stage *self);
+} akgl_Stage;
+
+// A function to divide the stage into a binary space partition tree with lists of actors in each partition
+akerr_ErrorContext AKERR_NOIGNORE akgl_stage_2d_bsp(akgl_Stage *self);
+
+#endif _STAGE_H_