diff --git a/museca@asphyxia/index.ts b/museca@asphyxia/index.ts
index e5838f4..f447d09 100644
--- a/museca@asphyxia/index.ts
+++ b/museca@asphyxia/index.ts
@@ -1,9 +1,10 @@
 import { common, exception, lounge, shop, hiscore, frozen } from "./handlers/common";
 import { load, load_m, newProfile, save, save_m } from "./handlers/player";
+import { isRequiredVersion } from "./utils";
 
 export function register() {
-  if(!R.DataFile) { // TODO: Better implementation.
-    return console.error("You need newer version of Core.")
+  if(!isRequiredVersion(1, 19)) {
+    console.error("You need newer version of Core. v1.19 or newer required.")
   }
 
   R.GameCode('PIX');
diff --git a/museca@asphyxia/utils.ts b/museca@asphyxia/utils.ts
index 6b67e21..dfa7c78 100644
--- a/museca@asphyxia/utils.ts
+++ b/museca@asphyxia/utils.ts
@@ -1,4 +1,11 @@
 export function IDToCode(id: number) {
   const padded = _.padStart(id.toString(), 8);
   return `${padded.slice(0, 4)}-${padded.slice(4)}`;
+}
+
+export function isRequiredVersion(major: number, minor: number) {
+  // version value exposed since Core v1.19
+  const core_major = typeof CORE_VERSION_MAJOR === "number" ? CORE_VERSION_MAJOR : 1
+  const core_minor = typeof CORE_VERSION_MINOR === "number" ? CORE_VERSION_MINOR : 18   
+  return core_major >= major && core_minor >= minor
 }
\ No newline at end of file