

I think it is really hard to make fuel so scarce that you won't use it, especially since the dV requirements in Kerbol are so small compared to what you need to travel interstellar distances in good time. I think only the third point is really a solution. At that point it doesn't matter if it breaks the balance interstellar itself and then the new systems will have their own balance, which is tailored for the new-tier tech. If it's done well, the interstellar and future tech will only become available when you've pretty much "tamed" the Kerbolar system. You'll only get access to the "Kerbolar system breaking" tech once you've effectively tamed the Kerbolar system anyway. Using something like that for interplanetary missions doesn't make any more sense than using a Saturn V as a sounding rocket! Interstellar vessels are huge, even some of the engines are too big to fit in the VAB. This will make the engines with plentiful fuel relevant all through the game. You have to mine and refine advanced fuels for advanced engines, and you can make it so you'll never have an unlimited supply. Although this will be harder to do for sandbox if you get access to everything from the get-go.įuel scarcity. I can think of ways that could make interstellar fun without breaking the early to mid game in the Kerbolar system.

I think making interstellar fun is almost impossible. Without new engines interstellar would be boring, But powerful engines might break the balance in the Kerbal system.
