Playing solo is very hard after beating the first boss, going in the black forest (which is the next objective after beating the first boss) alone is very risky and part of it, is because the combat is not too good, it is hard to target effectively an enemy. If you are a casual player, you should pass on this game but if you don't mind investing a lot of time in increasing your statistics, upgrade to the max all your weapons, equipment and structures, and explore the whole map to find merchants and rare resources, etc. to be able to progress then you can give it a try but the game is overrated, playing solo is not that fun, the only thing interesting, is how some creatures behave in combat, it is funny to see.