In 1856, after the end of the Crimean War, the DDSG decided to return and started its service between Galaţi and Odessa, and two special, double-paddle-wheeled, shallow-draft steamships were built at Óbuda Shipyard, named after the dangerous rocks of the Danube Gorge and Banat Waterfalls section. The 40 cm draft steamships DDSG TACHTALIA (1855) and DDSG IZLAS (1856) operated between Old Moldova and Turnu-Severin from 1856 to 1898.
The DDSG and at sea the Österreichischer Lloyd played a pioneering role in the establishment of the postal service in the region, and the spread of steam shipping sometimes led to unexpected events. An example of this was the hijacking of the steamship DDSG RADETZKY (1851), built in Óbuda Shipyard, by the revolutionary poet Hristo Botev and his fellow insurgents in May 1876. In the true spirit of peacetime, upon reaching Kozloduy at the end of the hijacking, Botev and Captain Dagobert Engländer parted with a handshake, and the ship’s crew and passengers waved their hats to the insurgents.
For a short time, the DDSG also operated services on the Prut River and between Galaţi and Batumi. The Galaţi-Batumi service departed every two weeks and was a mixed service that carried both passengers and goods. With the termination of the service in 1894, DDSG gave up its maritime business.