Pioneer is a space adventure game set in the Milky Way galaxy at the turn of the 31st century. The game is open-ended, and you are free to explore the millions of starsystems in the game. You can land on planets, slingshot past gas giants, and burn yourself to a crisp flying between binary star systems. You can try you hand at piracy, make your fortune trading between systems, or do missions for the various factions fighting for power, freedom or self-determination.
Here is a screenshot from the latest build of the recently released standalone Pioneer mod Genesia 130714 showing a Caïman trade ship with 2 MCU cargo containers in tow.
Details of where to get this stand alone mod can be found here Spacesimcentral.com