To use the patch 1.30 you must have installed patch 1.20!
Jowood has released the latest update, bringing Transport Giant to version 1.2; fixing several problems and providing several new features for your fun and comfort, is finally available for the UK/US version.
This patch will update the German version of Transport Gigant from v1.2 to v1.3.
Transport Gigant 1.1 (german) Patch.
Transport Gigant 1.20 (German) Patch.