diff --git a/src/primaite/game/game.py b/src/primaite/game/game.py
index 639b37cf..4741199c 100644
--- a/src/primaite/game/game.py
+++ b/src/primaite/game/game.py
@@ -247,9 +247,11 @@ class PrimaiteGame:
         game.options = PrimaiteGameOptions(**cfg["game"])
         game.save_step_metadata = cfg.get("io_settings", {}).get("save_step_metadata") or False
 
+        config_version = cfg.get("version", {})
+
         # TODO: Future YAML config should specify the PrimAITE version they are written for.
         #       For now, we warn that if it is missing, pending a mechanism to handle variations.
-        if not cfg["version"]:
+        if not isinstance(config_version, int):
             _LOGGER.warning("Version definition is missing from provided configuration. ")
 
         # 1. create simulation