diff --git a/app/tasks/importtasks.py b/app/tasks/importtasks.py
index 29f335f..caf5596 100644
--- a/app/tasks/importtasks.py
+++ b/app/tasks/importtasks.py
@@ -97,6 +97,11 @@ def postReleaseCheckUpdate(self, release, path):
 			depends.discard(mod)
 			optional_depends.discard(mod)
 
+		# Raise error on unresolved game dependencies
+		if package.type == PackageType.GAME and len(depends) > 0:
+			deps = ", ".join(depends)
+			raise MinetestCheckError("Game has unresolved hard dependencies: " + deps)
+
 		# Add dependencies
 		for meta in getMetaPackages(depends):
 			db.session.add(Dependency(package, meta=meta, optional=False))