Flying in to Munich, and then planning to take the train to Salzburg, with stops at various locations throughout Croatia, and then ending in Vienna. 14 day trip. what pass is best?
Why buy a pass? Most especially when you appear to have a known itinerary over this 14 days?
Hopefully this will clarify - http://www.seat61.com/Railpass-and-Eurail-pass-guide.htm#Should you buy a railpass or pay-as-you-go
If you buy a pass, you certainly don't need one that includes Germany. So long as you limit yourself to regional trains and depart after 09:00 on weekdays (anytime on weekends), you can buy a Bayern-Ticket to travel from Munich to Salzburg. It costs €22 for the first person and €4 for each additional person up to a total of five travelers. Buy it at either the Munich airport station or the main station. It allows unlimited travel all day long and includes the S-Bahn, U-Bahn, and buses in Munich on the day it is valid. See this page for Croatia Pass prices. However, it's my understanding that p2p tickets in Eastern Europe are very cheap so a pass may not be cost effective unless you are taking lots of rides. You can buy tickets on the Rail Europe site for travel in Croatia, but I expect they will cost more than if you buy them when you get to Croatia. If you will depart from Zagreb when you go to Vienna, you can take a direct train. There is an Austria-Croatia-Slovenia Eurail Pass, but I doubt if it will be cost effective. See this page. The simplest thing to do would be to buy a p2p ticket to Vienna from wherever you depart. But don't take my word for it. For friendly, expert, and FREE advice, call Budget Europe Travel Service.