Referee's Aid 8: Traders and Raiders (1e)
Referee's Aid 8: Traders & Raiders explores the options open to starship captains willing to operate on both sides of the law. Smuggling¸ blockade running¸ and outright piracy offer additional revenue streams to the cash-strapped merchant¸ but careers are short for all but the most cunning. Smart operators vary their methods¸ swapping from piracy to planetary raiding or hijacking when necessary¸ engaging in gunrunning and smuggling where there is a profit to be made" and some will even take the occasional legitimate cargo.
"There are many ways to make money with a starship¸ even without counting profitable activities undertaken somewhere that requires a ship to get to¸ but which do not involve the actual ship. Some of these activities are perfectly legal and are generally considered beneficial to interstellar society. Others... not so much.