I have been playing this game for quite awhile. I just finished a Duna landing and have a science vessel orbiting Eve. All of it done with vanilla KSP and by eyeballing Hohmann transfers. I finished the science tree. I'm not bragging just want to establish I'm not a newbie to the game. With the science tree finished I want to look into expanding the game. I'd like to add in more science and in general "stuff to do." What are the recommended mods? Is there a mod manager that makes installation and management of the modules easy? Which ones are buggy and will make my game not work right? Do I have to start a new career to use mods like final frontier? What's the best way to expand ksp without breaking it? I'm especially interested in realism mods.
