diff --git a/TAG.asl b/TAG.asl
new file mode 100644
index 0000000..6875b18
--- /dev/null
+++ b/TAG.asl
@@ -0,0 +1,54 @@
+state("Tag", "IGF Professional 2008") {
+    int NextLevelNumber : 0x16C088, 0x40;
+    int StartGame : 0x16C094, 0x14;
+    byte Loading : 0x16C05C, 0x5C;
+}
+
+state("Tag", "v1.1") {
+    int NextLevelNumber : 0x16D0E8, 0x40;
+    int StartGame : 0x16D0F4, 0x14;
+    byte Loading : 0x16D0BC, 0x5C;
+}
+
+init {
+    int Size = modules.First().ModuleMemorySize;
+    switch (Size) {
+        case 1511424:
+            version = "IGF Professional 2008";
+            print("TAG Autosplitter: Detected version IGF Professional 2008");
+            break;
+        case 1515520:
+            version = "v1.1";
+            print("TAG Autosplitter: Detected version 1.1");
+            break;
+        default:
+            print("TAG Autosplitter: Unknown module size " + Size.ToString());
+            MessageBox.Show(
+                timer.Form,
+                "TAG Autosplitter Error:\n\n" +
+                "Game version not recognized.\n" +
+                "Please report bugs at TAG speedrunning Discord.\n\n" +
+                "Module size: " + Size.ToString(),
+                "TAG Autosplitter Error",
+                MessageBoxButtons.OK,
+                MessageBoxIcon.Error
+            );
+            break;
+    }
+}
+
+reset {
+    return current.StartGame == 0;
+}
+
+start {
+    return old.StartGame == 0 && current.StartGame != 0;
+}
+
+split {
+    return current.NextLevelNumber != 0 && old.NextLevelNumber != current.NextLevelNumber;
+}
+
+isLoading {
+    return current.Loading == 1;
+}