diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..593beb4
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,11 @@
+supermon64.prg: relocate.prg supermon64-8000.prg supermon64-C000.prg
+	./build.py $^ $@
+
+supermon64-8000.prg: supermon64.asm
+	64tass -i $< -o $@ -DORG='$$8000'
+
+supermon64-C000.prg: supermon64.asm
+	64tass -i $< -o $@ -DORG='$$C000'
+
+relocate.prg: relocate.asm
+	64tass -i $< -o $@