diff --git a/examples/gno.land/r/demo/counter/counter.gno b/examples/gno.land/r/demo/counter/counter.gno
new file mode 100644
index 00000000000..43943e114dc
--- /dev/null
+++ b/examples/gno.land/r/demo/counter/counter.gno
@@ -0,0 +1,14 @@
+package counter
+
+import "strconv"
+
+var counter int
+
+func Increment() int {
+	counter++
+	return counter
+}
+
+func Render(_ string) string {
+	return strconv.Itoa(counter)
+}
diff --git a/examples/gno.land/r/demo/counter/counter_test.gno b/examples/gno.land/r/demo/counter/counter_test.gno
new file mode 100644
index 00000000000..352889f7e59
--- /dev/null
+++ b/examples/gno.land/r/demo/counter/counter_test.gno
@@ -0,0 +1,22 @@
+package counter
+
+import "testing"
+
+func TestIncrement(t *testing.T) {
+	counter = 0
+	val := Increment()
+	if val != 1 {
+		t.Fatalf("result from Increment(): %d != 1", val)
+	}
+	if counter != val {
+		t.Fatalf("counter (%d) != val (%d)", counter, val)
+	}
+}
+
+func TestRender(t *testing.T) {
+	counter = 1337
+	res := Render("")
+	if res != "1337" {
+		t.Fatalf("render result %q != %q", res, "1337")
+	}
+}
diff --git a/examples/gno.land/r/demo/counter/gno.mod b/examples/gno.land/r/demo/counter/gno.mod
new file mode 100644
index 00000000000..332d4e6da6a
--- /dev/null
+++ b/examples/gno.land/r/demo/counter/gno.mod
@@ -0,0 +1 @@
+module gno.land/r/demo/counter