Avoid moving game files manually between drives, as this can break the verified pathing the launcher uses to identify an offline-ready client.

Community-made offline tools can stop working after small Battle.net updates, leaving you with a broken game. Conclusion

Feats of strength and level progression will not track until you reconnect.

This guide provides the official, safe method to download StarCraft 2 for offline play and covers necessary precautions to ensure your files are verified and legitimate.