FrOSCon offers you, in cooperation with Deutsche Bahn and CCC, train tickets at special fares.
Deutsche Bahn offers you a discount on the normal prices (FLEX Ticket). If cheaper options are still available, you will get an offer for these, too.
Please note that you have to “buy” a free attendance confirmation for FrOSCon to be able to use DB event ticket. On this confirmation, you will find the link to the DB Event Ticket Shop.
Possible targets for FrOSCon are Siegburg Bonn and Sankt Augustin Zentrum.