You missunderstood me WuphonReach, Im not that early in the game, Im actually in the phase of landing and building bases all over the solar system. I just want to advance carefully, afraid of a dead end. I can grind actually just by launching satellites at least atm. Mythos thanks for answering, I think I have most of the "science" from the science tree, at least the early ones. Atm, an upgrade costs me 150-300 depending how deep I go. My concern is more are Rovers any usefull to build bases on planets surface? Should I go for the Heavy Rocketery to be able to land on other planets? Maybe I'm just worrying too much, but the career mode doesnt let you really any " freedom " and the skill tree is overwhelming so far. Too many options and too expensive.